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Radiant|Natural|GIA

1.21ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 7552179432

Certificate GIA 7552179432

Diamond specifications and retailer prices

From $4,577 SGD
As of November 7, 2026
Save $3,687 SGD (45%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $8,263 SGD at MOH London · As of November 7, 2026
View at MOH London

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded F 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 7552179432. Listed at 4 retailers as of November 7, 2026, with prices from $4,577 to $8,263, a $3,687 spread on the same certified stone. MOH London lists it at $8,263. 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle49.35°
Pavilion angle35.73°
OriginNatural
Grading LabGIA
CertificateGIA 7552179432
Dimensions6.98 × 5.38 × 3.64 mm
L/W Ratio1.30
Girdle conditionThick
Key to symbols
Crystal, Cloud, Needle
Top View
6.98 mm5.38 mm1.21 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7552179432
Side View
Table 70.0%Crown 49.35°Girdle: Slightly ThickPavilion 35.73°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $8,263 SGD|Low: $4,504 SGD|High: $8,451 SGD|Avg: $5,581 SGD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 5$4,547 SGD
Retailer 2$4,577 SGD
Retailer 4$5,050 SGD
Retailer 3$5,348 SGD
MOH London$8,263 SGD

45 data points across 5 retailers

4 retailers$4,577 SGD to $8,263 SGD

B+
Cheapest Retailer
-
$4,577 SGD
Retailer 2
-
$5,050 SGD
View
Price last confirmed 34 days ago
Retailer 3
-
$5,348 SGD
View
Price last confirmed 30 days ago
Most Expensive
B
MOH London
90A26EE00 · Nov 7
$8,263 SGD
£5,077 GBP
View
3 more retailers have this diamond
Prices start from $4,577 SGDSave up to $3,687 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.

B+
1.21ct Radiant
$4,577 SGD