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Marquise|Natural|GIA

2.51ct H SI2 Marquise Natural Diamond

ID • H/SI2 • GIA 6562556595

Certificate GIA 6562556595

Diamond specifications and retailer prices

From $33,084 NZD
As of November 5, 2026
Save $19,152 NZD (37%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $52,236 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562556595. Listed at 6 retailers as of November 2, 2026, with prices from $33,084 to $52,236, a $19,152 spread on the same certified stone. MOH London lists it at $52,236. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51
Carat
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle43.13°
Pavilion angle41.36°
OriginNatural
Grading LabGIA
CertificateGIA 6562556595
Dimensions12.60 × 7.00 × 4.70 mm
L/W Ratio1.80
Girdle conditionExtremely Thick
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Needle
Top View
12.60 mm7.00 mm2.51 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6562556595
Side View
Table 65.0%Crown 43.13°GirdlePavilion 41.36°CuletDepth 67.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $52,236 NZD|Low: $33,084 NZD|High: $54,978 NZD|Avg: $42,524 NZD|-5.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 4$33,084 NZD
Retailer 2$38,481 NZD
Retailer 5$38,766 NZD
Retailer 6$39,996 NZD
Retailer 3$47,383 NZD
MOH London$52,236 NZD

22 data points across 6 retailers

6 retailers$33,084 NZD to $52,236 NZD

A
Cheapest Retailer
-
$33,084 NZD
A
Retailer 2
-
$38,481 NZD
View
A
Retailer 3
-
$38,766 NZD
View
B+
Retailer 4
-
$39,996 NZD
View
B+
Retailer 5
-
$47,383 NZD
View
Most Expensive
B
MOH London
720699669 · Nov 2
$52,236 NZD
£22,801 GBP
View
5 more retailers have this diamond
Prices start from $33,084 NZDSave up to $19,152 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
2.51ct Marquise
$33,084 NZD