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Round|Natural|GIA

2.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1523286056

Certificate GIA 1523286056

Diamond specifications and retailer prices

From $34,554 NZD
$19,475 USD
As of November 1, 2026
Save $25,926 NZD (43%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $60,480 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1523286056. Listed at 16 retailers as of November 1, 2026, with prices from $34,554 to $60,480, a $25,926 spread on the same certified stone. MOH London lists it at $60,480. 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
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle32°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1523286056
Dimensions8.80 × 8.74 × 5.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional twinning wisps, pinpoints and surface graining are not shown.
Top View
8.80 mm8.74 mm2.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1523286056
Side View
Table 59.0%Crown 32°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 61.4%

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: $60,480 NZD|Low: $34,554 NZD|High: $61,208 NZD|Avg: $42,715 NZD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7$34,554 NZD
Retailer 10$35,601 NZD
Retailer 2$38,714 NZD
Retailer 4$40,518 NZD
Retailer 11$40,662 NZD
Retailer 3$41,767 NZD
Retailer 8$41,767 NZD
Retailer 9$43,151 NZD
Retailer 12$43,566 NZD
Retailer 6$44,558 NZD
Retailer 5$45,137 NZD
MOH London$60,480 NZD

38 data points across 12 retailers

16 retailers$34,554 NZD to $60,480 NZD

A
Cheapest Retailer
-
$34,554 NZD
$19,475 USD
A
Retailer 2
-
$35,465 NZD
$19,988 USD
View
A
Retailer 3
-
$35,601 NZD
$20,065 USD
View
A
Retailer 4
-
$38,714 NZD
£17,181 GBP
View
A
Retailer 5
-
$38,726 NZD
$21,826 USD
View
B+
Retailer 6
-
$40,518 NZD
$22,836 USD
View
B+
Retailer 7
-
$40,662 NZD
$22,917 USD
View
B+
Retailer 8
-
$41,767 NZD
$23,540 USD
View
B+
Retailer 9
-
$41,767 NZD
$23,540 USD
View
B+
Retailer 10
-
$41,953 NZD
$23,645 USD
View
B+
Retailer 11
-
$43,151 NZD
$24,320 USD
View
B+
Retailer 12
-
$43,566 NZD
$24,554 USD
View
B+
Retailer 13
-
$44,558 NZD
£19,774 GBP
View
B+
Retailer 14
-
$45,137 NZD
€24,228 EUR
View
B
Retailer 15
-
$54,861 NZD
$30,920 USD
View
Most Expensive
B
MOH London
192A2BDAA · Nov 1
$60,480 NZD
£26,840 GBP
View
15 more retailers have this diamond
Prices start from $34,554 NZDSave up to $25,926 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
$34,554 NZD