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Heart|Natural|GIA

1.55ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 2241005101

Certificate GIA 2241005101

Diamond specifications and retailer prices

From £1,692 GBP
As of November 6, 2026
Save £2,090 GBP (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,283 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct 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 2241005101. Listed at 11 retailers as of November 2, 2026, with a 124% 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

1.55
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2241005101
Dimensions6.98 × 7.91 × 4.64 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.98 mm7.91 mm1.55 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2241005101
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £2,360 GBP|Low: £1,674 GBP|High: £4,160 GBP|Avg: £2,627 GBP|-6.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£1,692 GBP
Retailer 9£2,088 GBP
Retailer 3£2,102 GBP
Retailer 8£2,304 GBP
Retailer 1£2,360 GBP
Retailer 2£2,394 GBP
Retailer 6£2,600 GBP
Retailer 7£3,558 GBP
Retailer 4£3,783 GBP

39 data points across 9 retailers

11 retailers£1,692 GBP to £3,783 GBP

A
Cheapest Retailer
-
£1,692 GBP
A
Retailer 2
-
£2,088 GBP
View
Final sale: no returns
A
Retailer 3
-
£2,102 GBP
View
A
Retailer 4
-
£2,304 GBP
View
A
Retailer 5
-
£2,360 GBP
View
B+
Retailer 6
-
£2,394 GBP
View
B+
Retailer 7
-
£2,572 GBP
View
B+
Retailer 8
-
£2,600 GBP
View
B
Retailer 9
-
£3,558 GBP
View
B+
Retailer 10
-
£3,783 GBP
View
Most Expensive
NZ Jewellers
e8f0e1b3-d335-4c9a-a027-ee7242894018 · Sep 25
£4,283 GBP
$5,733 USD
View
Price last confirmed 42 days ago
10 more retailers have this diamond
Prices start from £1,692 GBPSave up to £2,090 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
1.55ct Heart
£1,692 GBP