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Heart|Natural|GIA

1.50ct G SI1 Heart Natural Diamond

ID • G/SI1 • GIA 5241026604

Certificate GIA 5241026604

Diamond specifications and retailer prices

From £2,327 GBP
HK$24,400 HKD
As of November 2, 2026
Save £2,823 GBP (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,113 GBP at NZ Jewellers · As of September 25, 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 5241026604. Listed at 14 retailers as of November 2, 2026, with a 121% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5241026604
Dimensions6.91 × 7.71 × 4.91 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
6.91 mm7.71 mm1.50 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5241026604
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.7%

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 2
Current: £6,113 GBP|Low: £2,280 GBP|High: £6,113 GBP|Avg: £3,696 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
November 2, 2026
Retailer 7£2,327 GBP
Retailer 12£2,649 GBP
Retailer 10£2,753 GBP
Retailer 9£2,843 GBP
Retailer 3£2,880 GBP
Retailer 13£2,885 GBP
Retailer 8£2,902 GBP
Retailer 5£3,011 GBP
Retailer 6£3,514 GBP
Retailer 11£3,525 GBP
Retailer 14£3,891 GBP
Retailer 4£5,025 GBP
Retailer 2£5,150 GBP
NZ Jewellers£6,113 GBP

24 data points across 14 retailers

14 retailers£2,327 GBP to £5,150 GBP

A
Cheapest Retailer
-
£2,327 GBP
HK$24,400 HKD
A
Retailer 2
-
£2,649 GBP
€3,385 EUR
View
A
Retailer 3
-
£2,753 GBP
$3,695 USD
View
A
Retailer 4
-
£2,843 GBP
$3,815 USD
View
Final sale: no returns
A
Retailer 5
-
£2,880 GBP
$3,865 USD
View
A
Retailer 6
-
£2,885 GBP
View
A
Retailer 7
-
£2,902 GBP
View
A
Retailer 8
-
£3,011 GBP
SGD 5,461 SGD
View
Retailer 9
-
£3,514 GBP
A$7,254 AUD
View
Price last confirmed 37 days ago
A
Retailer 10
-
£3,525 GBP
$4,730 USD
View
B+
Retailer 11
-
£3,891 GBP
ZAR 84,361 ZAR
View
B+
Retailer 12
-
£5,025 GBP
$6,744 USD
View
B+
Retailer 13
-
£5,150 GBP
View
Most Expensive
NZ Jewellers
e145b531-bfab-499f-97d3-2138a1bd81f1 · Sep 25
£6,113 GBP
$8,203 USD
View
Price last confirmed 38 days ago
13 more retailers have this diamond
Prices start from £2,327 GBPSave up to £2,823 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
£2,327 GBP