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Heart|Natural|GIA

1.50ct K SI2 Heart Natural Diamond

ID • K/SI2 • GIA 7553188889

Certificate GIA 7553188889

Diamond specifications and retailer prices

From £1,533 GBP
As of November 6, 2026
Save £742 GBP (33%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,275 GBP at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7553188889. Listed at 6 retailers as of November 6, 2026, with prices from £1,533 to £2,275, a £742 spread on the same certified stone. 77 Diamonds lists it at £2,275. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7553188889
Dimensions7.72 × 7.11 × 4.49 mm
L/W Ratio1.09
Culet sizeVery Small
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
7.72 mm7.11 mm1.50 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 7553188889
Side View
Table 52.0%CrownGirdle: STK-VTKPavilionCulet: Very SmallDepth 58.2%

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: £2,275 GBP|Low: £1,435 GBP|High: £2,301 GBP|Avg: £1,741 GBP|+1.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 7£1,435 GBP
Retailer 3£1,533 GBP
Retailer 4£1,549 GBP
Retailer 6£1,555 GBP
Retailer 5£1,623 GBP
Retailer 2£2,220 GBP
77 Diamonds£2,275 GBP

42 data points across 7 retailers

6 retailers£1,533 GBP to £2,275 GBP

A
Cheapest Retailer
-
£1,533 GBP
A
Retailer 2
-
£1,549 GBP
View
A
Retailer 3
-
£1,555 GBP
View
A
Retailer 4
-
£1,623 GBP
View
B+
Retailer 5
-
£2,220 GBP
View
Most Expensive
B+
77 Diamonds
HSMBHCCQYGKQ · Nov 7
£2,275 GBP
View
5 more retailers have this diamond
Prices start from £1,533 GBPSave up to £742 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
£1,533 GBP