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Heart|Natural|GIA

1.51ct D IF Heart Natural Diamond

EX • D/IF • GIA 6511843117

Certificate GIA 6511843117

Diamond specifications and retailer prices

From £13,496 GBP
As of November 4, 2026
Save £7,221 GBP (35%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £20,717 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6511843117. Listed at 13 retailers as of November 4, 2026, with prices from £13,496 to £20,717, a £7,221 spread on the same certified stone. MOH London lists it at £20,717. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6511843117
Dimensions7.24 × 7.99 × 4.68 mm
L/W Ratio1.10
Top View
7.24 mm7.99 mm1.51 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6511843117
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.6%

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 4
Current: £20,717 GBP|Low: £13,458 GBP|High: £24,948 GBP|Avg: £16,939 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
November 4, 2026
Retailer 12£13,496 GBP
Retailer 9£14,069 GBP
Retailer 10£14,076 GBP
Retailer 2£14,114 GBP
Retailer 11£14,337 GBP
Retailer 13£15,416 GBP
Retailer 3£15,905 GBP
Retailer 7£16,071 GBP
Retailer 5£16,322 GBP
Retailer 4£16,517 GBP
Retailer 14£18,843 GBP
Retailer 8£19,541 GBP
MOH London£20,717 GBP
Retailer 6£24,948 GBP

44 data points across 14 retailers

13 retailers£13,496 GBP to £20,717 GBP

B+
Cheapest Retailer
-
£13,496 GBP
B+
Retailer 2
-
£14,069 GBP
View
Final sale: no returns
Retailer 3
-
£14,076 GBP
View
Price last confirmed 32 days ago
B+
Retailer 4
-
£14,114 GBP
View
B+
Retailer 5
-
£14,337 GBP
View
B+
Retailer 6
-
£15,416 GBP
View
B+
Retailer 7
-
£15,905 GBP
View
B+
Retailer 8
-
£16,071 GBP
View
B+
Retailer 9
-
£16,322 GBP
View
B+
Retailer 10
-
£16,517 GBP
View
B
Retailer 11
-
£18,843 GBP
View
B
Retailer 12
-
£19,541 GBP
View
Most Expensive
B
MOH London
7DFDD0769 · Nov 4
£20,717 GBP
View
12 more retailers have this diamond
Prices start from £13,496 GBPSave up to £7,221 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+
1.51ct Heart
£13,496 GBP