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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 £16,830 GBP
CA$31,319 CAD
As of October 30, 2026
Save £10,978 GBP (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £27,808 GBP 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 £16,830 to £27,808, a £10,978 spread on the same certified stone. MOH London lists it at £27,808. 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: £27,808 GBP|Low: £15,400 GBP|High: £27,993 GBP|Avg: £19,542 GBP|+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£15,400 GBP
Retailer 11£16,830 GBP
Retailer 13£16,935 GBP
Retailer 2£18,040 GBP
Retailer 7£18,423 GBP
Retailer 3£19,106 GBP
Retailer 14£19,106 GBP
Retailer 9£19,431 GBP
Retailer 5£19,748 GBP
Retailer 4£20,424 GBP
Retailer 10£20,870 GBP
Retailer 8£20,924 GBP
Retailer 12£21,532 GBP
MOH London£27,808 GBP

19 data points across 14 retailers

12 retailers£16,830 GBP to £27,808 GBP

A
Cheapest Retailer
-
£16,830 GBP
CA$31,319 CAD
A
Retailer 2
-
£16,935 GBP
$22,691 USD
View
A
Retailer 3
-
£18,040 GBP
View
B+
Retailer 4
-
£18,423 GBP
$24,685 USD
View
B+
Retailer 5
-
£19,106 GBP
$25,600 USD
View
B+
Retailer 6
-
£19,106 GBP
$25,600 USD
View
B+
Retailer 7
-
£19,431 GBP
$26,035 USD
View
B+
Retailer 8
-
£19,748 GBP
$26,460 USD
View
B+
Retailer 9
-
£20,870 GBP
$27,964 USD
View
B+
Retailer 10
-
£20,924 GBP
€26,701 EUR
View
B+
Retailer 11
-
£21,532 GBP
$28,851 USD
View
Most Expensive
B
MOH London
3FC4C3E6F · Oct 29
£27,808 GBP
View
11 more retailers have this diamond
Prices start from £16,830 GBPSave up to £10,978 GBP

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
£16,830 GBP