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Heart|Natural|GIA

2.51ct G SI1 Heart Natural Diamond

GD • G/SI1 • GIA 3525628956

Certificate GIA 3525628956

Diamond specifications and retailer prices

From £10,938 GBP
As of November 1, 2026
Save £7,970 GBP (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £18,907 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 2.51ct natural heart diamond

This 2.51ct natural heart sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3525628956. Listed at 15 retailers as of November 1, 2026, with prices from £10,938 to £18,907, a £7,970 spread on the same certified stone. MOH London lists it at £18,907. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3525628956
Dimensions7.99 × 7.25 × 4.95 mm
L/W Ratio1.10
Top View
7.99 mm7.25 mm2.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3525628956
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £18,907 GBP|Low: £10,938 GBP|High: £19,187 GBP|Avg: £13,768 GBP|-1.3%
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
November 7, 2026
Retailer 10£10,938 GBP
Retailer 4£11,160 GBP
Retailer 5£11,215 GBP
Retailer 3£11,633 GBP
Retailer 6£11,887 GBP
Retailer 13£12,240 GBP
Retailer 2£12,501 GBP
Retailer 12£12,738 GBP
Retailer 14£12,924 GBP
Retailer 7£12,933 GBP
Retailer 8£14,646 GBP
Retailer 9£16,669 GBP
Retailer 11£18,265 GBP
MOH London£18,907 GBP

34 data points across 14 retailers

15 retailers£10,938 GBP to £18,907 GBP

B+
Cheapest Retailer
-
£10,938 GBP
B+
Retailer 2
-
£11,160 GBP
View
B+
Retailer 3
-
£11,215 GBP
View
B+
Retailer 4
-
£11,633 GBP
View
Final sale: no returns
B+
Retailer 5
-
£11,887 GBP
View
B+
Retailer 6
-
£12,240 GBP
View
B+
Retailer 7
-
£12,501 GBP
View
Retailer 8
-
£12,738 GBP
View
Price last confirmed 15 days ago
B+
Retailer 9
-
£12,924 GBP
View
B+
Retailer 10
-
£12,933 GBP
View
B+
Retailer 11
-
£12,965 GBP
View
B+
Retailer 12
-
£14,646 GBP
View
B
Retailer 13
-
£16,669 GBP
View
Retailer 14
-
£18,265 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
74CF73489 · Nov 4
£18,907 GBP
View
14 more retailers have this diamond
Prices start from £10,938 GBPSave up to £7,970 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.

B+
2.51ct Heart
£10,938 GBP