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Radiant|Natural|GIA

1.21ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 1555663793

Certificate GIA 1555663793

Diamond specifications and retailer prices

From $1,981 USD
£1,560 GBP
Save $1,038 USD (34%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,055 USD at Cape Diamonds
View at Cape Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555663793. Listed at 7 retailers, with a 52% 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
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555663793
Dimensions7.41 × 5.28 × 3.45 mm
L/W Ratio1.40
Culet sizeNone
Top View
7.41 mm5.28 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555663793
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 65.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $3,055 USD|Low: $1,482 USD|High: $3,139 USD|Avg: $2,372 USD
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 1, 2026
Retailer 8$1,482 USD
Retailer 4$1,976 USD
Retailer 6$2,004 USD
Retailer 2$2,309 USD
Retailer 5$2,369 USD
Retailer 3$2,558 USD
Retailer 7$3,019 USD
Cape Diamonds$3,055 USD

43 data points across 8 retailers

7 retailers$1,981 USD to $3,019 USD

A
Cheapest Retailer
-
$1,981 USD
£1,560 GBP
A
Retailer 2
-
$2,004 USD
SGD 2,708 SGD
View
B+
Retailer 3
-
$2,309 USD
View
B+
Retailer 4
-
$2,369 USD
View
B
Retailer 5
-
$2,558 USD
€2,436 EUR
View
B
Retailer 6
-
$3,019 USD
View
Most Expensive
B
Cape Diamonds
cert_1555663793 · Aug 8
$3,055 USD
ZAR 49,348 ZAR
View
Price last confirmed 54 days ago
6 more retailers have this diamond
Prices start from $1,981 USDSave up to $1,038 USD

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.

A
1.21ct Radiant
$1,981 USD