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Radiant|Natural|GIA

1.21ct F I1 Radiant Natural Diamond

EX • F/I1 • GIA 2557139119

Certificate GIA 2557139119

Diamond specifications and retailer prices

From $3,508 SGD
$2,743 USD
As of October 29, 2026
Save $593 SGD (14%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,101 SGD at Yorxs · As of October 29, 2026
View at Yorxs

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557139119. Listed at 5 retailers as of October 29, 2026, with prices from $3,508 to $4,101, a $593 spread on the same certified stone. Yorxs lists it at $4,101. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
I1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle49.65°
Pavilion angle36.04°
OriginNatural
Grading LabGIA
CertificateGIA 2557139119
Dimensions7.01 × 5.36 × 3.63 mm
L/W Ratio1.31
Top View
7.01 mm5.36 mm1.21 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2557139119
Side View
Table 70.0%Crown 49.65°GirdlePavilion 36.04°Culet: NoneDepth 67.6%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $3,642 SGD|Low: $3,095 SGD|High: $4,101 SGD|Avg: $3,570 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
October 29, 2026
Retailer 6$3,095 SGD
Retailer 2$3,141 SGD
Retailer 4$3,508 SGD
Retailer 5$3,508 SGD
Retailer 1$3,642 SGD
Retailer 3$4,048 SGD
Yorxs$4,101 SGD

6 data points across 7 retailers

5 retailers$3,508 SGD to $4,101 SGD

Retailer 1
-
$3,141 SGD
$2,456 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
$3,508 SGD
$2,743 USD
View
B+
Retailer 3
-
$3,642 SGD
$2,848 USD
View
Retailer 4
-
$4,048 SGD
$3,165 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Yorxs
9E87A0E04 · Oct 29
$4,101 SGD
€3,054 EUR
View
4 more retailers have this diamond
Prices start from $3,508 SGDSave up to $593 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
$3,508 SGD