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Marquise|Natural|GIA

0.53ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 6505639156

Certificate GIA 6505639156

Diamond specifications and retailer prices

From £612 GBP
SGD 1,109 SGD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £612 GBP at Fonder Diamond
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Fonder Diamond

About this 0.53ct natural marquise diamond

This 0.53ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6505639156. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.53
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6505639156
Dimensions4.22 × 8.48 × 2.61 mm
L/W Ratio2.01
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
4.22 mm8.48 mm0.53 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6505639156
Side View
Table 56.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £612 GBP|Low: £612 GBP|High: £616 GBP|Avg: £615 GBP|-0.4%
October 13, 2026
Fonder Diamond£612 GBP

4 data points across 1 retailer

1 retailer

B
Fonder Diamond
96988820 · Oct 31
£612 GBP
SGD 1,109 SGD
View

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B
0.53ct Marquise
£612 GBP