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Radiant|Natural|GIA

1.21ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 2566444631

Certificate GIA 2566444631

Diamond specifications and retailer prices

From $4,329 SGD
As of November 4, 2026
Save $3,449 SGD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,778 SGD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 2566444631. Listed at 14 retailers as of November 4, 2026, with prices from $4,329 to $7,778, a $3,449 spread on the same certified stone. Wholesale Diamonds Direct lists it at $7,778. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566444631
Dimensions7.41 × 5.30 × 3.60 mm
L/W Ratio1.40
Culet sizeNone
Top View
7.41 mm5.30 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566444631
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.9%

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 4
Current: $4,997 SGD|Low: $4,329 SGD|High: $7,778 SGD|Avg: $5,613 SGD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 7, 2026
Retailer 12$4,329 SGD
Retailer 3$4,400 SGD
Retailer 8$4,434 SGD
Retailer 10$4,625 SGD
Retailer 9$4,691 SGD
Retailer 5$4,724 SGD
Retailer 1$4,997 SGD
Retailer 11$5,507 SGD
Retailer 4$5,571 SGD
Retailer 7$5,770 SGD
Retailer 6$6,007 SGD
Retailer 2$7,301 SGD
Retailer 13$7,756 SGD
Wholesale Diamonds Direct$7,778 SGD

38 data points across 14 retailers

14 retailers$4,329 SGD to $7,778 SGD

B+
Cheapest Retailer
-
$4,329 SGD
B+
Retailer 2
-
$4,400 SGD
View
B+
Retailer 3
-
$4,434 SGD
View
B+
Retailer 4
-
$4,625 SGD
View
Retailer 5
-
$4,691 SGD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$4,724 SGD
View
B+
Retailer 7
-
$4,997 SGD
View
B
Retailer 8
-
$5,507 SGD
View
B
Retailer 9
-
$5,571 SGD
View
B
Retailer 10
-
$5,770 SGD
View
B
Retailer 11
-
$6,007 SGD
View
B
Retailer 12
-
$7,301 SGD
View
B
Retailer 13
-
$7,756 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
451166363 · Nov 6
$7,778 SGD
$6,069 USD
View
13 more retailers have this diamond
Prices start from $4,329 SGDSave up to $3,449 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
$4,329 SGD