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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 £16,062 GBP
$21,521 USD
As of November 1, 2026
Save £11,226 GBP (41%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £27,287 GBP 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 £16,062 to £27,287, a £11,226 spread on the same certified stone. MOH London lists it at £27,287. 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: £27,287 GBP|Low: £16,062 GBP|High: £27,616 GBP|Avg: £20,224 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6£16,062 GBP
Retailer 7£17,024 GBP
Retailer 4£17,620 GBP
Retailer 8£17,897 GBP
Retailer 9£18,346 GBP
Retailer 3£19,271 GBP
Retailer 2£21,106 GBP
Retailer 5£24,160 GBP
MOH London£27,287 GBP

38 data points across 9 retailers

13 retailers£16,062 GBP to £27,287 GBP

A
Cheapest Retailer
-
£16,062 GBP
$21,521 USD
B+
Retailer 2
-
£17,024 GBP
$22,810 USD
View
B+
Retailer 3
-
£17,472 GBP
$23,411 USD
View
B+
Retailer 4
-
£17,620 GBP
View
Retailer 5
-
£17,897 GBP
A$36,892 AUD
View
Price last confirmed 29 days ago
B+
Retailer 6
-
£18,346 GBP
$24,581 USD
View
B+
Retailer 7
-
£18,928 GBP
$25,362 USD
View
B+
Retailer 8
-
£19,271 GBP
View
B+
Retailer 9
-
£19,656 GBP
$26,337 USD
View
B+
Retailer 10
-
£21,106 GBP
€26,933 EUR
View
B
Retailer 11
-
£24,160 GBP
ZAR 522,964 ZAR
View
B
Retailer 12
-
£24,752 GBP
$33,165 USD
View
Most Expensive
B
MOH London
D5C17EB66 · Nov 1
£27,287 GBP
View
12 more retailers have this diamond
Prices start from £16,062 GBPSave up to £11,226 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
2.51ct Round
£16,062 GBP