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Radiant|Natural|GIA

1.03ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2557530414

Certificate GIA 2557530414

Diamond specifications and retailer prices

From $3,127 SGD
As of November 2, 2026
Save $2,491 SGD (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,816 SGD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.03ct natural radiant diamond

This 1.03ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557530414. Listed at 10 retailers as of November 1, 2026, with a 80% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle49.07°
Pavilion angle36.66°
OriginNatural
Grading LabGIA
CertificateGIA 2557530414
Dimensions6.62 × 5.10 × 3.44 mm
L/W Ratio1.30
Girdle conditionThick
Key to symbols
Crystal, Feather, Pinpoint, Natural
Top View
6.62 mm5.10 mm1.03 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557530414
Side View
Table 69.0%Crown 49.07°GirdlePavilion 36.66°CuletDepth 67.5%

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 2
Current: $3,127 SGD|Low: $3,126 SGD|High: $5,781 SGD|Avg: $3,901 SGD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 1$3,127 SGD
Retailer 3$3,185 SGD
Retailer 4$3,332 SGD
Retailer 5$3,628 SGD
Retailer 6$3,861 SGD
Retailer 2$5,619 SGD

38 data points across 6 retailers

10 retailers$3,127 SGD to $5,619 SGD

A
Cheapest Retailer
-
$3,127 SGD
A
Retailer 2
-
$3,185 SGD
View
Retailer 3
-
$3,239 SGD
View
Price last confirmed 31 days ago
Retailer 4
-
$3,260 SGD
View
Price last confirmed 46 days ago
A
Retailer 5
-
$3,332 SGD
View
Retailer 6
-
$3,410 SGD
View
Price last confirmed 37 days ago
Retailer 7
-
$3,628 SGD
View
Price last confirmed 31 days ago
B
Retailer 8
-
$5,619 SGD
View
Retailer 9
-
$6,772 SGD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
683dc606-823f-43ad-9eb8-a75935b11463 · Sep 20
$6,816 SGD
$5,318 USD
View
Price last confirmed 47 days ago
9 more retailers have this diamond
Prices start from $3,127 SGDSave up to $2,491 SGD

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 Radiant
$3,127 SGD