Radiant|Natural|GIA

1.21ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 5241113102

Certificate GIA 5241113102

Diamond specifications and retailer prices

From $2,792 USD
As of November 6, 2026
Save $3,204 USD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,996 USD at NZ Jewellers · As of November 5, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5241113102. Listed at 21 retailers as of November 5, 2026, with prices from $2,792 to $5,996, a $3,204 spread on the same certified stone. NZ Jewellers lists it at $5,996. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241113102
Dimensions7.40 × 5.19 × 3.64 mm
L/W Ratio1.43
Culet sizeNone
Top View
7.40 mm5.19 mm1.21 ctJ / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5241113102
Side View
Table 69.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 70.0%

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: Nov 6
Current: $5,996 USD|Low: $2,792 USD|High: $5,996 USD|Avg: $3,656 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 7, 2026
Retailer 12$2,792 USD
Retailer 10$2,858 USD
Retailer 11$2,928 USD
Retailer 7$3,030 USD
Retailer 5$3,118 USD
Retailer 9$3,118 USD
Retailer 8$3,139 USD
Retailer 6$3,238 USD
Retailer 4$3,264 USD
Retailer 15$3,338 USD
Retailer 3$3,412 USD
Retailer 16$3,431 USD
Retailer 2$3,561 USD
Retailer 20$3,597 USD
Retailer 21$3,627 USD
Retailer 17$4,005 USD
Retailer 18$4,200 USD
Retailer 13$4,352 USD
Retailer 14$5,017 USD
Retailer 19$5,740 USD
NZ Jewellers$5,996 USD

16 data points across 21 retailers

21 retailers$2,792 USD to $5,996 USD

B+
Cheapest Retailer
-
$2,792 USD
B+
Retailer 2
-
$2,858 USD
View
B
Retailer 3
-
$2,928 USD
View
B
Retailer 4
-
$3,030 USD
View
B
Retailer 5
-
$3,118 USD
View
Retailer 6
-
$3,118 USD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$3,139 USD
View
B
Retailer 8
-
$3,238 USD
View
B
Retailer 9
-
$3,264 USD
View
B
Retailer 10
-
$3,338 USD
View
B
Retailer 11
-
$3,412 USD
View
B
Retailer 12
-
$3,431 USD
View
B
Retailer 13
-
$3,561 USD
View
B
Retailer 14
-
$3,597 USD
View
B
Retailer 15
-
$3,627 USD
View
B
Retailer 16
-
$4,005 USD
View
B
Retailer 17
-
$4,200 USD
View
B
Retailer 18
-
$4,352 USD
View
B
Retailer 19
-
$5,017 USD
View
B
Retailer 20
-
$5,740 USD
View
Most Expensive
B
NZ Jewellers
b2e4fea6-1d79-4214-8cff-e134bc66ec8b · Nov 5
$5,996 USD
View
20 more retailers have this diamond
Prices start from $2,792 USDSave up to $3,204 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.21ct Radiant
$2,792 USD