CaratHunter
Plans
Heart|Natural|GIA

1.50ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 6441485712

Certificate GIA 6441485712

Diamond specifications and retailer prices

From £1,776 GBP
$2,379 USD
As of November 1, 2026
Save £2,280 GBP (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,220 GBP at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6441485712. Listed at 13 retailers as of October 26, 2026, with a 128% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.94°
Pavilion angle38.3°
OriginNatural
Grading LabGIA
CertificateGIA 6441485712
Dimensions6.84 × 7.82 × 4.63 mm
L/W Ratio1.14
Top View
6.84 mm7.82 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6441485712
Side View
Table 60.0%Crown 35.94°Girdle: MED-THKPavilion 38.3°Culet: 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 1
Current: £4,220 GBP|Low: £1,688 GBP|High: £4,220 GBP|Avg: £2,610 GBP
NZ Jewellers
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
October 27, 2026
Retailer 14£1,776 GBP
Retailer 17£1,899 GBP
Retailer 3£1,960 GBP
Retailer 15£2,026 GBP
Retailer 4£2,194 GBP
Retailer 11£2,194 GBP
Retailer 12£2,279 GBP
Retailer 16£2,390 GBP
Retailer 10£2,425 GBP
Retailer 6£2,523 GBP
Retailer 7£2,523 GBP
Retailer 2£2,556 GBP
Retailer 5£2,605 GBP
Retailer 9£3,176 GBP
Retailer 8£3,327 GBP
Retailer 13£4,056 GBP
NZ Jewellers£4,220 GBP

34 data points across 17 retailers

13 retailers£1,776 GBP to £4,056 GBP

A
Cheapest Retailer
-
£1,776 GBP
$2,379 USD
A
Retailer 2
-
£1,899 GBP
$2,545 USD
View
A
Retailer 3
-
£1,960 GBP
$2,626 USD
View
A
Retailer 4
-
£2,194 GBP
$2,940 USD
View
Retailer 5
-
£2,279 GBP
$3,053 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£2,390 GBP
$3,203 USD
View
A
Retailer 7
-
£2,425 GBP
View
B+
Retailer 8
-
£2,523 GBP
$3,380 USD
View
B+
Retailer 9
-
£2,523 GBP
$3,380 USD
View
B+
Retailer 10
-
£2,556 GBP
$3,425 USD
View
B+
Retailer 11
-
£2,605 GBP
$3,490 USD
View
B
Retailer 12
-
£4,056 GBP
View
Most Expensive
NZ Jewellers
7e745e99-e91b-4681-9880-e0dd1fe472f5 · Oct 24
£4,220 GBP
$5,654 USD
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from £1,776 GBPSave up to £2,280 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
1.50ct Heart
£1,776 GBP