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Heart|Natural|GIA

1.50ct G SI1 Heart Natural Diamond

ID • G/SI1 • GIA 6542596436

Certificate GIA 6542596436

Diamond specifications and retailer prices

From £3,824 GBP
$5,124 USD
As of November 1, 2026
Save £4,364 GBP (53%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £8,188 GBP at NZ Jewellers · As of October 30, 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 6542596436. Listed at 24 retailers as of October 30, 2026, with prices from £3,824 to £8,188, a £4,364 spread on the same certified stone. NZ Jewellers lists it at £8,188. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542596436
Dimensions6.88 × 7.94 × 4.57 mm
L/W Ratio1.15
Top View
6.88 mm7.94 mm1.50 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542596436
Side View
Table 55.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.6%

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: £8,188 GBP|Low: £3,225 GBP|High: £8,188 GBP|Avg: £5,082 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
November 2, 2026
Retailer 11£3,871 GBP
Retailer 12£4,094 GBP
Retailer 3£4,138 GBP
Retailer 7£4,376 GBP
Retailer 6£4,425 GBP
Retailer 4£4,435 GBP
Retailer 5£4,435 GBP
Retailer 14£4,435 GBP
Retailer 15£4,669 GBP
Retailer 2£4,696 GBP
Retailer 13£4,776 GBP
Retailer 16£5,118 GBP
Retailer 10£6,015 GBP
Retailer 8£7,096 GBP
Retailer 9£7,213 GBP
NZ Jewellers£8,188 GBP

40 data points across 16 retailers

24 retailers£3,824 GBP to £8,188 GBP

A
Cheapest Retailer
-
£3,824 GBP
$5,124 USD
A
Retailer 2
-
£3,868 GBP
$5,183 USD
View
B+
Retailer 3
-
£3,871 GBP
$5,186 USD
View
B+
Retailer 4
-
£3,919 GBP
$5,251 USD
View
B+
Retailer 5
-
£4,094 GBP
$5,485 USD
View
Final sale: no returns
B+
Retailer 6
-
£4,138 GBP
$5,545 USD
View
B+
Retailer 7
-
£4,376 GBP
$5,863 USD
View
Retailer 8
-
£4,425 GBP
$5,929 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
£4,435 GBP
$5,943 USD
View
B+
Retailer 10
-
£4,435 GBP
$5,943 USD
View
B+
Retailer 11
-
£4,435 GBP
$5,943 USD
View
Retailer 12
-
£4,669 GBP
View
Price last confirmed 33 days ago
B+
Retailer 13
-
£4,696 GBP
View
Retailer 14
-
£4,776 GBP
A$9,846 AUD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
£4,941 GBP
$6,620 USD
View
B+
Retailer 16
-
£4,941 GBP
$6,620 USD
View
B
Retailer 17
-
£5,013 GBP
$6,717 USD
View
B
Retailer 18
-
£5,105 GBP
$6,840 USD
View
Retailer 19
-
£5,118 GBP
$6,857 USD
View
Price last confirmed 56 days ago
B
Retailer 20
-
£5,118 GBP
$6,857 USD
View
B
Retailer 21
-
£6,015 GBP
ZAR 130,203 ZAR
View
B
Retailer 22
-
£7,096 GBP
$9,507 USD
View
B
Retailer 23
-
£7,213 GBP
View
Most Expensive
B
NZ Jewellers
6f710149-8b88-4dd7-95b7-b358db1c13b1 · Oct 30
£8,188 GBP
$10,971 USD
View
23 more retailers have this diamond
Prices start from £3,824 GBPSave up to £4,364 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
£3,824 GBP