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Heart|Natural|GIA

1.50ct K SI1 Heart Natural Diamond

ID • K/SI1 • GIA 2241081426

Certificate GIA 2241081426

Diamond specifications and retailer prices

From £1,644 GBP
As of November 6, 2026
Save £2,345 GBP (59%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,990 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2241081426. Listed at 14 retailers as of November 5, 2026, with prices from £1,644 to £3,990, a £2,345 spread on the same certified stone. NZ Jewellers lists it at £3,990. 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
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2241081426
Dimensions6.49 × 7.76 × 4.95 mm
L/W Ratio1.20
Girdle conditionFaceted
Top View
6.49 mm7.76 mm1.50 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2241081426
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCuletDepth 63.8%

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: £3,990 GBP|Low: £1,616 GBP|High: £4,135 GBP|Avg: £2,605 GBP|-3.5%
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 14£1,644 GBP
Retailer 11£2,069 GBP
Retailer 3£2,114 GBP
Retailer 8£2,147 GBP
Retailer 2£2,221 GBP
Retailer 13£2,230 GBP
Retailer 5£2,232 GBP
Retailer 7£2,287 GBP
Retailer 6£2,466 GBP
Retailer 4£2,607 GBP
Retailer 9£2,795 GBP
Retailer 12£3,461 GBP
Retailer 10£3,818 GBP
NZ Jewellers£3,990 GBP

26 data points across 14 retailers

14 retailers£1,644 GBP to £3,990 GBP

A
Cheapest Retailer
-
£1,644 GBP
A
Retailer 2
-
£2,069 GBP
View
A
Retailer 3
-
£2,114 GBP
View
Final sale: no returns
Retailer 4
-
£2,142 GBP
View
Price last confirmed 9 days ago
A
Retailer 5
-
£2,147 GBP
View
A
Retailer 6
-
£2,221 GBP
View
A
Retailer 7
-
£2,230 GBP
View
A
Retailer 8
-
£2,232 GBP
View
A
Retailer 9
-
£2,287 GBP
View
B+
Retailer 10
-
£2,607 GBP
View
B+
Retailer 11
-
£2,795 GBP
View
B
Retailer 12
-
£3,461 GBP
View
B
Retailer 13
-
£3,818 GBP
View
Most Expensive
B
NZ Jewellers
9f46d0e6-acd8-4167-b0cc-8be54194d7a6 · Nov 5
£3,990 GBP
$5,340 USD
View
13 more retailers have this diamond
Prices start from £1,644 GBPSave up to £2,345 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
£1,644 GBP