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Round|Natural|GIA

2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6392995370

Certificate GIA 6392995370

Diamond specifications and retailer prices

From $34,659 NZD
$19,501 USD
As of November 1, 2026
Save $24,221 NZD (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $58,881 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6392995370. Listed at 14 retailers as of November 1, 2026, with prices from $34,659 to $58,881, a $24,221 spread on the same certified stone. MOH London lists it at $58,881. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6392995370
Dimensions8.61 × 8.66 × 5.40 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
8.61 mm8.66 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6392995370
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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 1
Current: $58,881 NZD|Low: $34,090 NZD|High: $59,592 NZD|Avg: $42,965 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$34,090 NZD
Retailer 5$34,659 NZD
Retailer 11$37,702 NZD
Retailer 2$38,239 NZD
Retailer 7$39,588 NZD
Retailer 9$40,844 NZD
Retailer 10$42,415 NZD
Retailer 6$43,904 NZD
Retailer 4$45,544 NZD
Retailer 8$53,411 NZD
MOH London$58,881 NZD

41 data points across 11 retailers

14 retailers$34,659 NZD to $58,881 NZD

A
Cheapest Retailer
-
$34,659 NZD
$19,501 USD
B+
Retailer 2
-
$37,702 NZD
$21,213 USD
View
B+
Retailer 3
-
$38,239 NZD
£16,941 GBP
View
B+
Retailer 4
-
$39,588 NZD
$22,274 USD
View
B+
Retailer 5
-
$40,789 NZD
$22,950 USD
View
B+
Retailer 6
-
$40,789 NZD
$22,950 USD
View
B+
Retailer 7
-
$40,844 NZD
$22,981 USD
View
B+
Retailer 8
-
$42,140 NZD
$23,710 USD
View
B
Retailer 9
-
$42,415 NZD
$23,865 USD
View
Retailer 10
-
$43,904 NZD
£19,451 GBP
View
Price last confirmed 33 days ago
B
Retailer 11
-
$45,544 NZD
€24,405 EUR
View
B
Retailer 12
-
$53,411 NZD
$30,052 USD
View
B
Retailer 13
-
$57,494 NZD
£25,472 GBP
View
Most Expensive
B
MOH London
ADEFF7D67 · Nov 1
$58,881 NZD
£26,086 GBP
View
13 more retailers have this diamond
Prices start from $34,659 NZDSave up to $24,221 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 Round
$34,659 NZD