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Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 7443324770

Certificate GIA 7443324770

Diamond specifications and retailer prices

From £1,857 GBP
$2,488 USD
As of October 31, 2026
Save £2,212 GBP (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,068 GBP at MOH London · As of October 29, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7443324770. Listed at 18 retailers as of October 29, 2026, with prices from £1,857 to £4,068, a £2,212 spread on the same certified stone. MOH London lists it at £4,068. 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

1.51
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7443324770
Dimensions6.66 × 6.48 × 4.39 mm
L/W Ratio1.03
Top View
6.66 mm6.48 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7443324770
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.7%

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: Oct 31
Current: £4,068 GBP|Low: £1,587 GBP|High: £4,096 GBP|Avg: £2,428 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4£1,904 GBP
Retailer 7£1,955 GBP
Retailer 5£2,023 GBP
Retailer 6£2,192 GBP
Retailer 3£2,529 GBP
Retailer 2£2,662 GBP
MOH London£4,068 GBP

44 data points across 7 retailers

18 retailers£1,857 GBP to £4,068 GBP

A
Cheapest Retailer
-
£1,857 GBP
$2,488 USD
A
Retailer 2
-
£1,904 GBP
$2,551 USD
View
A
Retailer 3
-
£1,939 GBP
$2,598 USD
View
A
Retailer 4
-
£1,955 GBP
$2,620 USD
View
A
Retailer 5
-
£1,963 GBP
$2,630 USD
View
A
Retailer 6
-
£2,023 GBP
$2,711 USD
View
Final sale: no returns
A
Retailer 7
-
£2,192 GBP
$2,937 USD
View
Retailer 8
-
£2,193 GBP
$2,939 USD
View
Price last confirmed 10 days ago
A
Retailer 9
-
£2,213 GBP
$2,965 USD
View
B+
Retailer 10
-
£2,380 GBP
$3,189 USD
View
B+
Retailer 11
-
£2,448 GBP
$3,280 USD
View
B+
Retailer 12
-
£2,493 GBP
$3,340 USD
View
B+
Retailer 13
-
£2,493 GBP
$3,340 USD
View
B+
Retailer 14
-
£2,529 GBP
View
B+
Retailer 15
-
£2,575 GBP
$3,450 USD
View
B+
Retailer 16
-
£2,662 GBP
€3,397 EUR
View
B
Retailer 17
-
£3,491 GBP
$4,677 USD
View
Most Expensive
B
MOH London
FE14F1F2E · Oct 29
£4,068 GBP
View
17 more retailers have this diamond
Prices start from £1,857 GBPSave up to £2,212 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
1.51ct Heart
£1,857 GBP