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Round|Natural|GIA

2.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7558836825

Certificate GIA 7558836825

Diamond specifications and retailer prices

From $38,185 NZD
$21,521 USD
As of November 1, 2026
Save $26,687 NZD (41%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $64,872 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7558836825. Listed at 13 retailers as of November 1, 2026, with prices from $38,185 to $64,872, a $26,687 spread on the same certified stone. MOH London lists it at $64,872. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7558836825
Dimensions8.63 × 8.70 × 5.44 mm
L/W Ratio1.01
Top View
8.63 mm8.70 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7558836825
Side View
Table 57.0%CrownGirdlePavilionCuletDepth 62.7%

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: $64,872 NZD|Low: $38,185 NZD|High: $65,654 NZD|Avg: $48,091 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$38,185 NZD
Retailer 7$40,472 NZD
Retailer 4$41,889 NZD
Retailer 8$42,547 NZD
Retailer 9$43,614 NZD
Retailer 2$45,812 NZD
Retailer 3$50,177 NZD
Retailer 5$57,437 NZD
MOH London$64,872 NZD

39 data points across 9 retailers

13 retailers$38,185 NZD to $64,872 NZD

A
Cheapest Retailer
-
$38,185 NZD
$21,521 USD
B+
Retailer 2
-
$40,472 NZD
$22,810 USD
View
B+
Retailer 3
-
$41,538 NZD
$23,411 USD
View
B+
Retailer 4
-
$41,889 NZD
£18,590 GBP
View
Retailer 5
-
$42,547 NZD
A$36,892 AUD
View
Price last confirmed 29 days ago
B+
Retailer 6
-
$43,614 NZD
$24,581 USD
View
B+
Retailer 7
-
$45,000 NZD
$25,362 USD
View
B+
Retailer 8
-
$45,812 NZD
£20,330 GBP
View
B+
Retailer 9
-
$46,730 NZD
$26,337 USD
View
B+
Retailer 10
-
$50,177 NZD
€26,933 EUR
View
B
Retailer 11
-
$57,437 NZD
ZAR 522,964 ZAR
View
B
Retailer 12
-
$58,845 NZD
$33,165 USD
View
Most Expensive
B
MOH London
D5C17EB66 · Nov 1
$64,872 NZD
£28,789 GBP
View
12 more retailers have this diamond
Prices start from $38,185 NZDSave up to $26,687 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
$38,185 NZD