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Heart|Natural|GIA

1.50ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 2537397933

Certificate GIA 2537397933

Diamond specifications and retailer prices

From £3,315 GBP
HK$34,700 HKD
As of November 1, 2026
Save £3,761 GBP (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £7,240 GBP at NZ Jewellers · As of October 18, 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 G 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 2537397933. Listed at 22 retailers as of October 28, 2026, with a 113% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2537397933
Dimensions8.06 × 7.13 × 4.69 mm
L/W Ratio1.13
Top View
8.06 mm7.13 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2537397933
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.2%

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: £7,240 GBP|Low: £3,286 GBP|High: £7,240 GBP|Avg: £4,685 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
Retailer 18
November 2, 2026
Retailer 15£3,315 GBP
Retailer 11£3,535 GBP
Retailer 17£3,691 GBP
Retailer 8£3,779 GBP
Retailer 13£3,806 GBP
Retailer 18£3,902 GBP
Retailer 6£3,995 GBP
Retailer 2£4,223 GBP
Retailer 5£4,329 GBP
Retailer 9£4,329 GBP
Retailer 10£4,363 GBP
Retailer 7£4,445 GBP
Retailer 3£4,541 GBP
Retailer 4£4,995 GBP
Retailer 14£5,319 GBP
Retailer 12£6,378 GBP
Retailer 16£7,076 GBP
NZ Jewellers£7,240 GBP

31 data points across 18 retailers

22 retailers£3,315 GBP to £7,076 GBP

A
Cheapest Retailer
-
£3,315 GBP
HK$34,700 HKD
A
Retailer 2
-
£3,535 GBP
₹451,067 INR
View
Retailer 3
-
£3,691 GBP
$4,946 USD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
£3,779 GBP
SGD 6,843 SGD
View
B+
Retailer 5
-
£3,806 GBP
$5,099 USD
View
B+
Retailer 6
-
£3,902 GBP
SGD 7,066 SGD
View
B+
Retailer 7
-
£3,995 GBP
$5,353 USD
View
Final sale: no returns
B+
Retailer 8
-
£4,057 GBP
$5,436 USD
View
B+
Retailer 9
-
£4,060 GBP
$5,440 USD
View
B+
Retailer 10
-
£4,223 GBP
View
B+
Retailer 11
-
£4,244 GBP
A$8,748 AUD
View
Retailer 12
-
£4,329 GBP
$5,800 USD
View
Price last confirmed 17 days ago
Retailer 13
-
£4,329 GBP
$5,800 USD
View
Price last confirmed 15 days ago
Retailer 14
-
£4,329 GBP
$5,800 USD
View
Price last confirmed 16 days ago
Retailer 15
-
£4,363 GBP
A$8,994 AUD
View
Price last confirmed 23 days ago
B+
Retailer 16
-
£4,445 GBP
$5,956 USD
View
B+
Retailer 17
-
£4,541 GBP
$6,084 USD
View
Retailer 18
-
£4,995 GBP
$6,693 USD
View
Price last confirmed 14 days ago
B+
Retailer 19
-
£5,319 GBP
ZAR 115,131 ZAR
View
B
Retailer 20
-
£6,378 GBP
View
B
Retailer 21
-
£7,076 GBP
View
Most Expensive
NZ Jewellers
3b4c4f03-34f2-4ccb-b429-4698c50eaa9b · Oct 18
£7,240 GBP
$9,701 USD
View
Price last confirmed 15 days ago
21 more retailers have this diamond
Prices start from £3,315 GBPSave up to £3,761 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
£3,315 GBP