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Heart|Natural|GIA

1.50ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 6381571451

Certificate GIA 6381571451

Diamond specifications and retailer prices

From £3,743 GBP
As of November 6, 2026
Save £4,542 GBP (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £8,285 GBP at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6381571451. Listed at 15 retailers as of November 5, 2026, with prices from £3,743 to £8,285, a £4,542 spread on the same certified stone. NZ Jewellers lists it at £8,285. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6381571451
Dimensions6.84 × 7.86 × 4.63 mm
L/W Ratio1.15
Top View
6.84 mm7.86 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6381571451
Side View
Table 59.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 59.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £8,285 GBP|Low: £3,699 GBP|High: £8,285 GBP|Avg: £5,225 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 6, 2026
Retailer 2£3,743 GBP
Retailer 10£3,822 GBP
Retailer 13£4,191 GBP
Retailer 14£4,259 GBP
Retailer 9£4,572 GBP
Retailer 5£4,895 GBP
Retailer 11£4,953 GBP
Retailer 8£5,030 GBP
Retailer 4£5,072 GBP
Retailer 6£5,290 GBP
Retailer 12£5,715 GBP
Retailer 3£5,905 GBP
Retailer 7£7,103 GBP
NZ Jewellers£8,285 GBP

35 data points across 14 retailers

15 retailers£3,743 GBP to £8,285 GBP

A
Cheapest Retailer
-
£3,743 GBP
B+
Retailer 2
-
£3,822 GBP
View
B+
Retailer 3
-
£4,072 GBP
View
B+
Retailer 4
-
£4,072 GBP
View
B+
Retailer 5
-
£4,191 GBP
View
B+
Retailer 6
-
£4,206 GBP
View
B+
Retailer 7
-
£4,321 GBP
View
Retailer 8
-
£4,572 GBP
View
Price last confirmed 8 days ago
B
Retailer 9
-
£4,895 GBP
View
B
Retailer 10
-
£4,953 GBP
View
B
Retailer 11
-
£5,030 GBP
View
B
Retailer 12
-
£5,072 GBP
View
B
Retailer 13
-
£5,715 GBP
View
B
Retailer 14
-
£7,103 GBP
View
Most Expensive
B
NZ Jewellers
832fd1d8-e403-43b4-a407-031290372245 · Nov 5
£8,285 GBP
$11,089 USD
View
14 more retailers have this diamond
Prices start from £3,743 GBPSave up to £4,542 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
£3,743 GBP