Heart|Natural|GIA

1.03ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 1553251290

Certificate GIA 1553251290

Diamond specifications and retailer prices

From €1,881 EUR
As of November 4, 2026
Save €1,679 EUR (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,261 EUR at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

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 1553251290. Listed at 10 retailers as of November 4, 2026, with a 89% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553251290
Dimensions6.89 × 5.76 × 4.19 mm
L/W Ratio1.20
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
6.89 mm5.76 mm1.03 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553251290
Side View
Table 55.0%CrownGirdlePavilionCulet: NoneDepth 60.8%

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 4
Current: €2,530 EUR|Low: €1,724 EUR|High: €3,613 EUR|Avg: €2,433 EUR|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4€1,881 EUR
Retailer 5€2,038 EUR
Retailer 2€2,214 EUR
Retailer 1€2,530 EUR
Retailer 3€3,560 EUR

44 data points across 5 retailers

10 retailers€1,881 EUR to €3,560 EUR

A
Cheapest Retailer
-
€1,881 EUR
Final sale: no returns
Retailer 2
-
€2,038 EUR
View
Price last confirmed 29 days ago
Retailer 3
-
€2,038 EUR
View
Price last confirmed 29 days ago
Retailer 4
-
€2,132 EUR
View
Price last confirmed 36 days ago
B+
Retailer 5
-
€2,214 EUR
View
Retailer 6
-
€2,351 EUR
View
Price last confirmed 66 days ago
Retailer 7
-
€2,351 EUR
View
Price last confirmed 38 days ago
B+
Retailer 8
-
€2,530 EUR
View
B
Retailer 9
-
€3,560 EUR
View
Most Expensive
NZ Jewellers
e02b1e4b-e303-4e8c-8b89-58fab2390e37 · Sep 30
€4,261 EUR
$4,757 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from €1,881 EURSave up to €1,679 EUR

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
€1,881 EUR