CaratHunter
Plans
Heart|Natural|GIA

1.51ct D IF Heart Natural Diamond

GD • D/IF • GIA 6512499597

Certificate GIA 6512499597

Diamond specifications and retailer prices

From £13,929 GBP
As of November 4, 2026
Save £7,450 GBP (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £21,380 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6512499597. Listed at 11 retailers as of November 4, 2026, with prices from £13,929 to £21,380, a £7,450 spread on the same certified stone. MOH London lists it at £21,380. 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

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

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512499597
Dimensions7.98 × 5.70 × 3.88 mm
L/W Ratio1.40
Top View
7.98 mm5.70 mm1.51 ctD / IF
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512499597
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.1%

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: £21,380 GBP|Low: £13,888 GBP|High: £21,696 GBP|Avg: £16,591 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 8£13,929 GBP
Retailer 7£14,305 GBP
Retailer 6£14,519 GBP
Retailer 2£14,565 GBP
Retailer 10£15,084 GBP
Retailer 9£15,793 GBP
Retailer 4£16,586 GBP
Retailer 11£16,846 GBP
Retailer 3£18,190 GBP
Retailer 5£20,166 GBP
MOH London£21,380 GBP

43 data points across 11 retailers

11 retailers£13,929 GBP to £21,380 GBP

B+
Cheapest Retailer
-
£13,929 GBP
Retailer 2
-
£14,305 GBP
View
Price last confirmed 32 days ago
B+
Retailer 3
-
£14,519 GBP
View
Final sale: no returns
B+
Retailer 4
-
£14,565 GBP
View
B+
Retailer 5
-
£14,789 GBP
View
B+
Retailer 6
-
£15,084 GBP
View
B
Retailer 7
-
£15,793 GBP
View
B
Retailer 8
-
£16,586 GBP
View
B
Retailer 9
-
£16,846 GBP
View
B
Retailer 10
-
£20,166 GBP
View
Most Expensive
B
MOH London
27FEA5F9E · Nov 4
£21,380 GBP
View
10 more retailers have this diamond
Prices start from £13,929 GBPSave up to £7,450 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
£13,929 GBP