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Heart|Natural|GIA

1.50ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6532541638

Certificate GIA 6532541638

Diamond specifications and retailer prices

From £2,749 GBP
As of November 6, 2026
Save £521 GBP (16%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,269 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

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 6532541638. Listed at 7 retailers as of November 5, 2026, with prices from £2,749 to £3,269, a £521 spread on the same certified stone. Blue Nile lists it at £3,269. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532541638
Dimensions7.14 × 7.72 × 4.51 mm
L/W Ratio1.08
Top View
7.14 mm7.72 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532541638
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.4%

Caratlytics Score

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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: £3,269 GBP|Low: £2,587 GBP|High: £3,784 GBP|Avg: £3,110 GBP|-13.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5£2,749 GBP
Retailer 4£2,821 GBP
Retailer 7£2,869 GBP
Retailer 3£2,930 GBP
Retailer 6£2,955 GBP
Retailer 2£3,000 GBP
Blue Nile£3,269 GBP

42 data points across 7 retailers

7 retailers£2,749 GBP to £3,269 GBP

A
Cheapest Retailer
-
£2,749 GBP
A
Retailer 2
-
£2,821 GBP
View
Final sale: no returns
A
Retailer 3
-
£2,869 GBP
View
A
Retailer 4
-
£2,930 GBP
View
A
Retailer 5
-
£2,955 GBP
View
A
Retailer 6
-
£3,000 GBP
View
Most Expensive
A
Blue Nile
26714380 · Nov 5
£3,269 GBP
$4,376 USD
View
6 more retailers have this diamond
Prices start from £2,749 GBPSave up to £521 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
£2,749 GBP