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Round|Natural|GIA

2.57ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 5232949605

Certificate GIA 5232949605

Diamond specifications and retailer prices

From $40,078 NZD
CA$31,319 CAD
As of October 30, 2026
Save $26,143 NZD (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $66,221 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 2.57ct natural round diamond

This 2.57ct 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 5232949605. Listed at 12 retailers as of October 29, 2026, with prices from $40,078 to $66,221, a $26,143 spread on the same certified stone. MOH London lists it at $66,221. 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

2.57
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5232949605
Dimensions8.70 × 8.77 × 5.42 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.70 mm8.77 mm2.57 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5232949605
Side View
Table 59.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 62.1%

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: Oct 30
Current: $66,221 NZD|Low: $36,673 NZD|High: $66,663 NZD|Avg: $46,613 NZD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 6$36,673 NZD
Retailer 11$40,078 NZD
Retailer 13$40,328 NZD
Retailer 2$42,959 NZD
Retailer 7$43,873 NZD
Retailer 3$45,499 NZD
Retailer 14$45,499 NZD
Retailer 9$46,272 NZD
Retailer 5$47,027 NZD
Retailer 4$48,638 NZD
Retailer 10$49,700 NZD
Retailer 8$49,828 NZD
Retailer 12$51,276 NZD
MOH London$66,221 NZD

18 data points across 14 retailers

12 retailers$40,078 NZD to $66,221 NZD

A
Cheapest Retailer
-
$40,078 NZD
CA$31,319 CAD
A
Retailer 2
-
$40,328 NZD
$22,691 USD
View
A
Retailer 3
-
$42,959 NZD
£19,032 GBP
View
B+
Retailer 4
-
$43,873 NZD
$24,685 USD
View
B+
Retailer 5
-
$45,499 NZD
$25,600 USD
View
B+
Retailer 6
-
$45,499 NZD
$25,600 USD
View
B+
Retailer 7
-
$46,272 NZD
$26,035 USD
View
B+
Retailer 8
-
$47,027 NZD
$26,460 USD
View
B+
Retailer 9
-
$49,700 NZD
$27,964 USD
View
B+
Retailer 10
-
$49,828 NZD
€26,701 EUR
View
B+
Retailer 11
-
$51,276 NZD
$28,851 USD
View
Most Expensive
B
MOH London
3FC4C3E6F · Oct 29
$66,221 NZD
£29,338 GBP
View
11 more retailers have this diamond
Prices start from $40,078 NZDSave up to $26,143 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
2.57ct Round
$40,078 NZD