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Radiant|Natural|GIA

1.21ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1448552241

Certificate GIA 1448552241

Diamond specifications and retailer prices

From $6,219 SGD
$4,863 USD
As of November 1, 2026
Save $3,452 SGD (36%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,165 SGD at NZ Jewellers · As of September 28, 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 I 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 1448552241. Listed at 16 retailers as of October 31, 2026, with a 55% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1448552241
Dimensions7.08 × 5.58 × 3.82 mm
L/W Ratio1.27
Top View
7.08 mm5.58 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1448552241
Side View
Table 69.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $7,678 SGD|Low: $6,219 SGD|High: $11,736 SGD|Avg: $8,285 SGD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7$6,219 SGD
Retailer 10$7,131 SGD
Retailer 8$7,327 SGD
Retailer 4$7,552 SGD
Retailer 1$7,678 SGD
Retailer 9$7,733 SGD
Retailer 6$8,602 SGD
Retailer 2$8,681 SGD
Retailer 5$9,671 SGD
Retailer 3$11,597 SGD

33 data points across 10 retailers

16 retailers$6,219 SGD to $9,671 SGD

B
Cheapest Retailer
-
$6,219 SGD
$4,863 USD
B
Retailer 2
-
$7,045 SGD
$5,509 USD
View
Retailer 3
-
$7,131 SGD
$5,576 USD
View
Price last confirmed 34 days ago
B
Retailer 4
-
$7,327 SGD
$5,729 USD
View
B
Retailer 5
-
$7,552 SGD
£4,649 GBP
View
B
Retailer 6
-
$7,678 SGD
£4,727 GBP
View
Retailer 7
-
$7,733 SGD
A$9,302 AUD
View
Price last confirmed 34 days ago
B
Retailer 8
-
$7,852 SGD
$6,140 USD
View
B
Retailer 9
-
$7,852 SGD
$6,140 USD
View
B
Retailer 10
-
$8,108 SGD
$6,340 USD
View
Retailer 11
-
$8,228 SGD
$6,434 USD
View
Price last confirmed 34 days ago
B
Retailer 12
-
$8,602 SGD
€6,406 EUR
View
Retailer 13
-
$8,681 SGD
$6,788 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$9,671 SGD
ZAR 122,164 ZAR
View
Retailer 15
-
$11,597 SGD
£7,140 GBP
View
Price under review
Most Expensive
NZ Jewellers
c912433b-c587-4a8d-bdf2-f60c249c3acd · Sep 28
$13,165 SGD
$10,294 USD
View
Price under review
15 more retailers have this diamond
Prices start from $6,219 SGDSave up to $3,452 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
$6,219 SGD