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Radiant|Natural|GIA

1.21ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 1565405171

Certificate GIA 1565405171

Diamond specifications and retailer prices

From $3,959 SGD
As of November 6, 2026
Save $5,199 SGD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,158 SGD at NZ Jewellers · As of November 5, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565405171. Listed at 15 retailers as of November 5, 2026, with prices from $3,959 to $9,158, a $5,199 spread on the same certified stone. NZ Jewellers lists it at $9,158. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1565405171
Dimensions7.04 × 5.36 × 3.59 mm
L/W Ratio1.31
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.04 mm5.36 mm1.21 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1565405171
Side View
Table 63.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 66.9%

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 6
Current: $9,158 SGD|Low: $3,937 SGD|High: $9,526 SGD|Avg: $5,745 SGD|-3.9%
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
Retailer 14
November 7, 2026
Retailer 7$3,959 SGD
Retailer 10$3,969 SGD
Retailer 4$4,841 SGD
Retailer 11$4,852 SGD
Retailer 3$5,001 SGD
Retailer 8$5,099 SGD
Retailer 12$5,257 SGD
Retailer 13$5,257 SGD
Retailer 2$5,261 SGD
Retailer 14$5,571 SGD
Retailer 6$5,831 SGD
Retailer 5$6,066 SGD
Retailer 9$8,767 SGD
NZ Jewellers$9,158 SGD

30 data points across 14 retailers

15 retailers$3,959 SGD to $9,158 SGD

A
Cheapest Retailer
-
$3,959 SGD
A
Retailer 2
-
$3,969 SGD
View
B+
Retailer 3
-
$4,410 SGD
View
B+
Retailer 4
-
$4,841 SGD
View
B
Retailer 5
-
$4,852 SGD
View
Final sale: no returns
Retailer 6
-
$5,001 SGD
View
Price last confirmed 11 days ago
B+
Retailer 7
-
$5,099 SGD
View
B+
Retailer 8
-
$5,257 SGD
View
B+
Retailer 9
-
$5,257 SGD
View
B+
Retailer 10
-
$5,261 SGD
View
B+
Retailer 11
-
$5,571 SGD
View
Retailer 12
-
$5,831 SGD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$6,066 SGD
View
B
Retailer 14
-
$8,767 SGD
View
Most Expensive
B
NZ Jewellers
7e1aef85-8ab4-4137-a5bc-67e8757982bc · Nov 5
$9,158 SGD
$7,146 USD
View
14 more retailers have this diamond
Prices start from $3,959 SGDSave up to $5,199 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
$3,959 SGD