Heart|Natural|GIA

1.50ct D SI2 Heart Natural Diamond

ID • D/SI2 • GIA 6531397919

Certificate GIA 6531397919

Diamond specifications and retailer prices

From £2,859 GBP
As of November 6, 2026
Save £3,081 GBP (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,599 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6531397919. Listed at 16 retailers as of November 4, 2026, with a 108% 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
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531397919
Dimensions7.89 × 6.92 × 4.84 mm
L/W Ratio1.14
Top View
7.89 mm6.92 mm1.50 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6531397919
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.4%

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: £6,599 GBP|Low: £2,840 GBP|High: £6,708 GBP|Avg: £4,193 GBP|-1.6%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6£2,859 GBP
Retailer 2£3,042 GBP
Retailer 7£3,452 GBP
Retailer 4£3,635 GBP
Retailer 10£3,640 GBP
Retailer 3£3,683 GBP
Retailer 8£3,780 GBP
Retailer 9£3,853 GBP
Retailer 5£5,940 GBP
Queensmith£6,599 GBP

41 data points across 10 retailers

16 retailers£2,859 GBP to £5,940 GBP

A
Cheapest Retailer
-
£2,859 GBP
A
Retailer 2
-
£3,042 GBP
View
A
Retailer 3
-
£3,452 GBP
View
Final sale: no returns
A
Retailer 4
-
£3,635 GBP
View
Retailer 5
-
£3,640 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£3,683 GBP
View
Retailer 7
-
£3,740 GBP
View
Price last confirmed 21 days ago
Retailer 8
-
£3,740 GBP
View
Price last confirmed 21 days ago
Retailer 9
-
£3,740 GBP
View
Price last confirmed 19 days ago
A
Retailer 10
-
£3,759 GBP
View
A
Retailer 11
-
£3,780 GBP
View
A
Retailer 12
-
£3,853 GBP
View
Retailer 13
-
£4,315 GBP
View
Price last confirmed 18 days ago
B+
Retailer 14
-
£5,940 GBP
View
Retailer 15
-
£6,516 GBP
View
Price last confirmed 19 days ago
Most Expensive
Queensmith
6531397919 · Oct 28
£6,599 GBP
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from £2,859 GBPSave up to £3,081 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
£2,859 GBP