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Heart|Natural|GIA

1.03ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 2554522381

Certificate GIA 2554522381

Diamond specifications and retailer prices

From £1,722 GBP
As of November 6, 2026
Save £1,486 GBP (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,208 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-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 2554522381. Listed at 5 retailers as of November 4, 2026, with prices from £1,722 to £3,208, a £1,486 spread on the same certified stone. MOH London lists it at £3,208. 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

1.03
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554522381
Dimensions6.09 × 6.88 × 4.12 mm
L/W Ratio1.13
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
6.09 mm6.88 mm1.03 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554522381
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,208 GBP|Low: £1,321 GBP|High: £3,255 GBP|Avg: £1,934 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 3£1,381 GBP
Retailer 5£1,453 GBP
Retailer 4£1,722 GBP
Retailer 2£1,942 GBP
MOH London£3,208 GBP

43 data points across 5 retailers

5 retailers£1,722 GBP to £3,208 GBP

Retailer 1
-
£1,381 GBP
Price last confirmed 14 days ago
Retailer 2
-
£1,501 GBP
View
Price last confirmed 14 days ago
B+
Retailer 3
-
£1,722 GBP
View
B+
Retailer 4
-
£1,942 GBP
View
Most Expensive
B
MOH London
AD5769D0A · Nov 4
£3,208 GBP
View
4 more retailers have this diamond
Prices start from £1,722 GBPSave up to £1,486 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.

B+
1.03ct Heart
£1,722 GBP