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Radiant|Natural|GIA

1.21ct J SI1 Radiant Natural Diamond

GD • J/SI1 • GIA 6552460630

Certificate GIA 6552460630

Diamond specifications and retailer prices

From $2,921 SGD
As of November 4, 2026
Save $2,605 SGD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,614 SGD at NZ Jewellers · As of September 30, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552460630. Listed at 12 retailers as of November 4, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552460630
Dimensions7.19 × 5.07 × 3.58 mm
L/W Ratio1.42
Girdle conditionPolished
Culet sizeNone
Key to symbols
Pinpoint
Top View
7.19 mm5.07 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552460630
Side View
Table 70.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 70.7%

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 4
Current: $3,861 SGD|Low: $2,434 SGD|High: $5,608 SGD|Avg: $3,829 SGD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6$2,921 SGD
Retailer 4$3,166 SGD
Retailer 2$3,346 SGD
Retailer 1$3,861 SGD
Retailer 7$3,895 SGD
Retailer 5$3,935 SGD
Retailer 3$5,526 SGD

44 data points across 7 retailers

12 retailers$2,921 SGD to $5,526 SGD

B
Cheapest Retailer
-
$2,921 SGD
Final sale: no returns
Retailer 2
-
$3,163 SGD
View
Price last confirmed 30 days ago
Retailer 3
-
$3,163 SGD
View
Price last confirmed 30 days ago
B
Retailer 4
-
$3,166 SGD
View
Retailer 5
-
$3,309 SGD
View
Price last confirmed 38 days ago
B
Retailer 6
-
$3,346 SGD
View
Retailer 7
-
$3,650 SGD
View
Price last confirmed 39 days ago
B
Retailer 8
-
$3,861 SGD
View
Retailer 9
-
$3,895 SGD
View
Price last confirmed 31 days ago
B
Retailer 10
-
$3,935 SGD
View
B
Retailer 11
-
$5,526 SGD
View
Most Expensive
NZ Jewellers
e8365d4d-539f-43df-b37b-606d08b7042a · Sep 30
$6,614 SGD
$5,161 USD
View
Price last confirmed 37 days ago
11 more retailers have this diamond
Prices start from $2,921 SGDSave up to $2,605 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
$2,921 SGD