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Heart|Natural|GIA

1.03ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 3545089209

Certificate GIA 3545089209

Diamond specifications and retailer prices

From £1,026 GBP
As of November 3, 2026
Save £474 GBP (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,500 GBP at GemTrove · As of November 6, 2026
View at GemTrove

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 3545089209. Listed at 6 retailers as of November 3, 2026, with prices from £1,026 to £1,500, a £474 spread on the same certified stone. GemTrove lists it at £1,500. 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
PolishVery Good
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 3545089209
Dimensions6.04 × 7.08 × 4.21 mm
L/W Ratio1.17
Top View
6.04 mm7.08 mm1.03 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
CertificateGIA 3545089209
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £1,500 GBP|Low: £975 GBP|High: £1,500 GBP|Avg: £1,192 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 4£1,026 GBP
Retailer 3£1,030 GBP
Retailer 5£1,039 GBP
Retailer 2£1,116 GBP
Retailer 6£1,174 GBP
GemTrove£1,500 GBP

40 data points across 6 retailers

6 retailers£1,026 GBP to £1,500 GBP

A
Cheapest Retailer
-
£1,026 GBP
Final sale: no returns
A
Retailer 2
-
£1,030 GBP
View
A
Retailer 3
-
£1,039 GBP
View
A
Retailer 4
-
£1,116 GBP
View
A
Retailer 5
-
£1,174 GBP
View
Most Expensive
B+
GemTrove
GT-N-01268830-98 · Nov 6
£1,500 GBP
A$3,088 AUD
View
5 more retailers have this diamond
Prices start from £1,026 GBPSave up to £474 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
1.03ct Heart
£1,026 GBP