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Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6545064208

Certificate GIA 6545064208

Diamond specifications and retailer prices

From £2,808 GBP
$3,763 USD
As of November 1, 2026
Save £1,335 GBP (32%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £5,406 GBP at MOH London · As of October 11, 2026
View at MOH London

About this 1.5ct natural heart diamond

This 1.5ct 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 6545064208. Listed at 15 retailers as of November 1, 2026, with a 48% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.98°
OriginNatural
Grading LabGIA
CertificateGIA 6545064208
Dimensions7.92 × 6.11 × 4.27 mm
L/W Ratio1.30
Top View
7.92 mm6.11 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545064208
Side View
Table 69.0%Crown 32.98°Girdle: ThickPavilionCulet: NoneDepth 69.9%

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: £5,406 GBP|Low: £2,494 GBP|High: £5,939 GBP|Avg: £3,379 GBP|-8.9%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 8£2,546 GBP
Retailer 6£2,670 GBP
Retailer 11£2,742 GBP
Retailer 7£2,765 GBP
Retailer 15£2,808 GBP
Retailer 5£2,889 GBP
Retailer 12£3,003 GBP
Retailer 13£3,075 GBP
Retailer 19£3,105 GBP
Retailer 17£3,180 GBP
Retailer 9£3,407 GBP
Retailer 3£3,599 GBP
Retailer 10£3,613 GBP
Retailer 14£3,664 GBP
Retailer 16£3,664 GBP
Retailer 18£3,784 GBP
Retailer 4£3,879 GBP
Retailer 2£4,144 GBP
MOH London£5,406 GBP

40 data points across 19 retailers

15 retailers£2,808 GBP to £4,144 GBP

Retailer 1
-
£2,546 GBP
$3,411 USD
Price last confirmed 18 days ago
Retailer 2
-
£2,742 GBP
$3,674 USD
View
Price last confirmed 24 days ago
B+
Retailer 3
-
£2,808 GBP
$3,763 USD
View
Retailer 4
-
£2,889 GBP
$3,871 USD
View
Price last confirmed 19 days ago
B+
Retailer 5
-
£3,003 GBP
$4,024 USD
View
B+
Retailer 6
-
£3,075 GBP
CA$5,722 CAD
View
B+
Retailer 7
-
£3,180 GBP
$4,260 USD
View
Retailer 8
-
£3,407 GBP
A$7,022 AUD
View
Price last confirmed 23 days ago
Retailer 9
-
£3,613 GBP
$4,841 USD
View
Price last confirmed 20 days ago
B
Retailer 10
-
£3,664 GBP
$4,910 USD
View
B
Retailer 11
-
£3,664 GBP
$4,910 USD
View
B
Retailer 12
-
£3,784 GBP
$5,070 USD
View
Retailer 13
-
£3,879 GBP
ZAR 83,957 ZAR
View
Price last confirmed 21 days ago
B
Retailer 14
-
£4,144 GBP
View
Most Expensive
MOH London
F8B778ACD · Oct 11
£5,406 GBP
View
Price last confirmed 22 days ago
14 more retailers have this diamond
Prices start from £2,808 GBPSave up to £1,335 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+
1.50ct Heart
£2,808 GBP