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Gemologist-led catalogue information

About this diamond

0.51ct Marquise G SI1 Natural Diamond. This is a natural diamond. It displays G colour with SI1 clarity. Its finish details include Excellent polish, Very Good symmetry. It measures 8.02 × 4.18 × 2.63 mm. It is accompanied by an GIA grading report, number 6552449760.

0.51ct Marquise G SI1 Natural Diamond showcases the distinctive proportions of a marquise cut. This is a natural diamond. It displays G colour with SI1 clarity.

Its finish details include Excellent polish, Very Good symmetry. It measures 8.02 × 4.18 × 2.63 mm. It is accompanied by an GIA grading report, number 6552449760.

Complete specification

Diamond details and proportions

Review the grading, dimensions and available proportion data together. Empty or unavailable supplier fields are not invented.
Carat weight0.51 ShapeMarquise
ColourG ClaritySI1
Cut PolishEX
SymmetryVG FluorescenceFNT
Table63.0% Depth62.9%
Crown angle0.00° Pavilion angle0.00°
Length-to-width ratio0.00 Measurements8.02 × 4.18 × 2.63 mm
Girdle0.000 CuletNON
LaboratoryGIA Report number6552449760
GemTrove SKUGT-N-00385796-98 Price per carat$3,153 AUD / ct
Catalogue and grading summary

Diamond information at a glance

0.51ct Marquise G SI1 Natural Diamond. This is a natural diamond. It displays G colour with SI1 clarity. Its finish details include Excellent polish, Very Good symmetry. It measures 8.02 × 4.18 × 2.63 mm. It is accompanied by an GIA grading report, number 6552449760.
OriginNatural
ShapeMarquise
Carat0.51
ColourG
ClaritySI1
LaboratoryGIA
Report6552449760
Measurements8.02 × 4.18 × 2.63 mm

This summary is generated from approved catalogue, pricing and grading fields. It is informational and does not replace the laboratory grading report or a gemologist inspection.

Custom jewellery, designed around this exact diamond

Design This 0.51ct Marquise Diamond Into Custom Jewellery

With actual measurements of 8.02 × 4.18 × 2.63 mm, this 0.51ct Marquise natural diamond, documented on GIA report 6552449760 can become the centrepiece of a custom engagement ring, pendant or other fine-jewellery design made around the stone’s real proportions in Melbourne.

Carat & face-up size 0.51ct

Carat is a measure of weight, while the millimetre dimensions tell you more about how large the diamond faces up and how the setting must be engineered. This stone measures 8.02 × 4.18 × 2.63 mm, so those actual dimensions can guide claw position, halo spacing, bezel size and setting clearances. At roughly the half-to-one-carat range, it can suit a refined solitaire, halo, three-stone design or diamond pendant depending on the look you want.

Colour character G

G sits in the near-colourless G–J range. Any warmth can be subtle and will vary with lighting, cut, surrounding metal and side stones, so the finished design should be considered as a whole.

Clarity & eye-clean review SI1

SI1 sits in the Slightly Included clarity range. Whether inclusions are visible without magnification depends on their size, relief, type and location as well as the diamond’s shape, so image/video or gemologist review is particularly useful. Ask our Graduate Gemologist (GIA) if you would like an opinion on whether this exact diamond appears eye-clean in normal viewing.

Cut, light & finish Polish EX · Symmetry VG

For a Marquise diamond, appearance should not be reduced to a Round Brilliant cut scale. Outline, facet pattern, contrast, length-to-width ratio, polish, symmetry and image/video assessment are important parts of the selection. Recorded finish: Polish EX · Symmetry VG.

Design possibilities for this exact diamond

This exact 0.51ct Marquise diamond can be considered for a range of GemTrove engagement-ring designs. The options below are selected from the approved GemTrove ring taxonomy for this shape. Marquise diamonds have two vulnerable points, so protective end prongs and accurate stone measurements are especially important when engineering the setting.

Ring Styles
EngagementSolitairesHidden HaloSingle HaloDouble Halo3-StoneNature InspiredBypassVintageMulti Row & PavéContemporary
Setting Techniques
PavéMicro PavéU MicroBezel East-WestBezel North-SouthBezelShared Prong
Centre Settings
6 ProngBezelSingle HaloHidden HaloDouble Halo3-Stone
Shank Profiles
PlainKnife EdgeCathedralSplitTwisted

What could we make?

Depending on your style, budget and intended wear, GemTrove can use this diamond as the centrepiece of a custom-made piece, rather than supplying the loose stone alone.

Custom engagement ringSolitaire or halo ringThree-stone designCustom diamond pendant

From this loose diamond to finished jewellery in Melbourne

We can carry the selected stone through measurement, design and manufacture so the setting is engineered around the diamond you actually chose.

Measure the actual stone

Use the recorded 8.02 × 4.18 × 2.63 mm dimensions as the starting point for the setting rather than relying on a generic carat template.

3D / STL scan where appropriate

Where suitable for the project, precision stone measurement or 3D/STL scanning can help capture the actual outline, proportions and dimensions for custom design work.

Custom CAD design

Create CAD around the selected centre stone, including setting height, claw placement, halo spacing, side stones, band profile and wedding-band compatibility.

Design review

Review proportions, practical clearances and setting tolerances before manufacture so the finished jewellery is designed as one complete system around the stone.

Manufacture in Melbourne

Move the approved design into manufacture, stone setting, hand finishing and polishing in Melbourne, with selected projects also suitable for traditional hand-making or master-jeweller techniques.

Final inspection

Check setting security, finish and the diamond’s presentation before the completed jewellery is supplied.

Ask our Gemologist about this diamond

A grading report is an important starting point, but the actual diamond still deserves visual interpretation. Ask GemTrove's Graduate Gemologist (GIA) to help you compare the report, measurements, image/video and intended jewellery design.

  • How does this G colour diamond present face-up in normal viewing and against different metal colours?
  • Does this particular SI1 clarity diamond appear eye-clean in normal viewing, based on the available imagery/video and report information?
  • Is there noticeable bow-tie contrast, and is the outline well balanced for the intended ring design?
  • Would you like us to explain the recorded fluorescence (Faint) and whether it is relevant to this stone?
  • Which setting height, claw style, halo proportions and metal would best suit the actual dimensions of this diamond?
Graduate Gemologist (GIA) guidanceThird-generation jewellery experienceCustom engagement rings and fine jewelleryMelbourne CBD showroomCAD, precision measurement and 3D/STL scanning where appropriateMelbourne manufacture, setting and hand finishing
Comparable quote? Have a genuine like-for-like quotation? GemTrove can review the diamond and jewellery specifications — including the grading report, metal, setting construction, labour and included services — under our Pricing Guarantee. It is a comparison review, not an unconditional promise to beat every cheaper quote.

This interpretation is generated from the approved catalogue and grading fields for this exact diamond. It is educational guidance and does not replace the laboratory grading report, current imagery/video or an in-person gemologist assessment.

Generated from this diamond’s live data

Frequently asked questions

Answers are generated from the approved catalogue fields for this exact diamond and do not replace the laboratory report.
Is this a natural or lab-grown diamond?
This is a natural diamond. The origin type is taken from the approved GemTrove catalogue record and should be read together with the laboratory grading report.
What are the main characteristics of this diamond?
This diamond is a 0.51 carat Marquise with G colour and SI1 clarity. These values come from the current approved catalogue record.
How should I understand the colour grade?
The recorded colour is G. Face-up appearance can vary with lighting, surrounding metal colour, cut proportions and the observer, so the grading report and an in-person or video review remain important.
What does the SI1 clarity grade mean for this diamond?
SI1 is the clarity grade recorded for this diamond. The location, type and visibility of inclusions can differ between diamonds with the same grade, so the grading report and magnified media should be reviewed.
What finish grades are recorded?
The recorded finish grades are EX polish, VG symmetry. Cut, polish and symmetry describe different aspects of proportion, surface finish and facet alignment.
What proportions are available for this diamond?
The available proportion data records table 63.0%, depth 62.9%, crown angle 0.00°, pavilion angle 0.00°, length-to-width ratio 0.00. Proportions should be considered together rather than using one number alone to judge appearance.
What are the physical measurements?
The recorded measurements are 8.02 × 4.18 × 2.63 mm. Measurements help assess face-up spread and are also important when confirming a suitable setting.
Does this diamond have a grading report?
Yes. The catalogue record identifies grading report GIA 6552449760. The report number should be checked against the laboratory record before purchase or setting.
What fluorescence is recorded?
The recorded fluorescence grade is FNT. Fluorescence describes the response under ultraviolet light and does not by itself describe ordinary viewing appearance.
How is the displayed price calculated?
The displayed price is converted at runtime from the approved USD source price into the selected display currency. The public price is shown as tax-inclusive and rounded according to GemTrove pricing rules.
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