CaratHunter
Plans
Radiant|Natural|GIA

1.21ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 1548626456

Certificate GIA 1548626456

Diamond specifications and retailer prices

From $3,800 SGD
As of November 3, 2026
Save $2,991 SGD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,791 SGD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct 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 1548626456. Listed at 8 retailers as of November 3, 2026, with prices from $3,800 to $6,791, a $2,991 spread on the same certified stone. NZ Jewellers lists it at $6,791. 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

1.21
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle54.45°
Pavilion angle34.68°
OriginNatural
Grading LabGIA
CertificateGIA 1548626456
Dimensions6.81 × 5.33 × 3.71 mm
L/W Ratio1.28
Girdle conditionThick
Key to symbols
Crystal, Pinpoint
Top View
6.81 mm5.33 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548626456
Side View
Table 72.0%Crown 54.45°Girdle: ThickPavilion 34.68°Culet: NoneDepth 69.6%

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 3
Current: $6,791 SGD|Low: $3,800 SGD|High: $6,957 SGD|Avg: $4,710 SGD|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 9$3,800 SGD
Retailer 2$3,801 SGD
Retailer 8$3,899 SGD
Retailer 7$4,049 SGD
Retailer 11$4,090 SGD
Retailer 10$4,164 SGD
Retailer 5$4,398 SGD
Retailer 4$4,425 SGD
Retailer 13$4,583 SGD
Retailer 12$4,639 SGD
Retailer 3$4,862 SGD
Retailer 6$6,518 SGD
NZ Jewellers$6,791 SGD

34 data points across 13 retailers

8 retailers$3,800 SGD to $6,791 SGD

A
Cheapest Retailer
-
$3,800 SGD
A
Retailer 2
-
$3,801 SGD
View
A
Retailer 3
-
$3,899 SGD
View
A
Retailer 4
-
$4,049 SGD
View
A
Retailer 5
-
$4,090 SGD
View
Retailer 6
-
$4,164 SGD
View
Price last confirmed 31 days ago
B
Retailer 7
-
$6,518 SGD
View
Most Expensive
B
NZ Jewellers
b32c0587-4dbb-4cc1-b33c-78e9665a1bb0 · Nov 3
$6,791 SGD
$5,299 USD
View
7 more retailers have this diamond
Prices start from $3,800 SGDSave up to $2,991 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
1.21ct Radiant
$3,800 SGD