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Heart|Natural|GIA

1.51ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6565046861

Certificate GIA 6565046861

Diamond specifications and retailer prices

From £2,205 GBP
As of November 6, 2026
Save £810 GBP (27%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,015 GBP at GemTrove · As of November 6, 2026
View at GemTrove

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565046861. Listed at 7 retailers as of November 6, 2026, with prices from £2,205 to £3,015, a £810 spread on the same certified stone. GemTrove lists it at £3,015. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565046861
Dimensions7.14 × 7.80 × 4.62 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Feather, Natural
Top View
7.14 mm7.80 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565046861
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.2%

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 6
Current: £2,205 GBP|Low: £2,205 GBP|High: £3,005 GBP|Avg: £2,535 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1£2,205 GBP
Retailer 3£2,241 GBP
Retailer 2£2,395 GBP
Retailer 5£2,624 GBP
Retailer 4£2,672 GBP

45 data points across 5 retailers

7 retailers£2,205 GBP to £3,015 GBP

A
Cheapest Retailer
-
£2,205 GBP
A
Retailer 2
-
£2,241 GBP
View
A
Retailer 3
-
£2,395 GBP
View
B+
Retailer 4
-
£2,624 GBP
View
B+
Retailer 5
-
£2,672 GBP
View
B+
Retailer 6
-
£2,811 GBP
View
Most Expensive
B+
GemTrove
GT-N-01269524-98 · Nov 6
£3,015 GBP
A$6,208 AUD
View
6 more retailers have this diamond
Prices start from £2,205 GBPSave up to £810 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
£2,205 GBP