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Radiant|Natural|GIA

1.21ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 5553821034

Certificate GIA 5553821034

Diamond specifications and retailer prices

From $3,319 SGD
As of November 4, 2026
Save $3,454 SGD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,773 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553821034. Listed at 13 retailers as of November 4, 2026, with prices from $3,319 to $6,773, a $3,454 spread on the same certified stone. NZ Jewellers lists it at $6,773. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553821034
Dimensions6.98 × 5.30 × 3.63 mm
L/W Ratio1.32
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
6.98 mm5.30 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553821034
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.6%

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: $6,773 SGD|Low: $3,319 SGD|High: $6,826 SGD|Avg: $4,358 SGD
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 7, 2026
Retailer 4$3,319 SGD
Retailer 13$3,481 SGD
Retailer 5$3,588 SGD
Retailer 7$3,823 SGD
Retailer 9$3,887 SGD
Retailer 11$3,887 SGD
Retailer 2$4,037 SGD
Retailer 6$4,115 SGD
Retailer 3$4,256 SGD
Retailer 8$4,264 SGD
Retailer 10$4,486 SGD
Retailer 12$6,536 SGD
NZ Jewellers$6,773 SGD

29 data points across 13 retailers

13 retailers$3,319 SGD to $6,773 SGD

A
Cheapest Retailer
-
$3,319 SGD
B+
Retailer 2
-
$3,481 SGD
View
B+
Retailer 3
-
$3,588 SGD
View
Final sale: no returns
B+
Retailer 4
-
$3,823 SGD
View
Retailer 5
-
$3,887 SGD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$3,887 SGD
View
B+
Retailer 7
-
$4,037 SGD
View
B+
Retailer 8
-
$4,115 SGD
View
B
Retailer 9
-
$4,256 SGD
View
B+
Retailer 10
-
$4,264 SGD
View
B+
Retailer 11
-
$4,486 SGD
View
Retailer 12
-
$6,536 SGD
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
b4174110-3705-4efe-92d9-c6361fdc8e45 · Nov 5
$6,773 SGD
$5,285 USD
View
12 more retailers have this diamond
Prices start from $3,319 SGDSave up to $3,454 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
$3,319 SGD