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Radiant|Natural|GIA

1.21ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 2556128158

Certificate GIA 2556128158

Diamond specifications and retailer prices

From $3,481 CAD
As of November 7, 2026
5 retailers carry this diamond
Most expensive: $7,462 CAD at NZ Jewellers · As of September 25, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556128158. Listed at 5 retailers as of November 7, 2026. 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
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556128158
Dimensions7.11 × 5.26 × 3.57 mm
L/W Ratio1.35
Top View
7.11 mm5.26 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556128158
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

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

Price History

Last verified: Nov 7
Current: $3,370 CAD|Low: $2,628 CAD|High: $6,507 CAD|Avg: $3,794 CAD|-0.3%
Retailer 1
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
October 6, 2026
Retailer 10$2,628 CAD
Retailer 17$2,675 CAD
Retailer 11$2,694 CAD
Retailer 12$2,893 CAD
Retailer 4$3,140 CAD
Retailer 13$3,291 CAD
Retailer 15$3,322 CAD
Retailer 1$3,370 CAD
Retailer 5$3,481 CAD
Retailer 7$3,657 CAD
Retailer 8$3,657 CAD
Retailer 9$3,784 CAD
Retailer 2$4,358 CAD
Retailer 6$4,463 CAD
Retailer 14$5,007 CAD
Retailer 3$5,399 CAD
Retailer 16$6,230 CAD

12 data points across 17 retailers

5 retailers

Retailer 1
-
$2,628 CAD
Price last confirmed 33 days ago
Retailer 2
-
$3,291 CAD
View
Price last confirmed 34 days ago
B+
Retailer 3
-
$3,481 CAD
View
Retailer 4
-
$6,230 CAD
View
Price last confirmed 33 days ago
Most Expensive
NZ Jewellers
43dc02b9-5f31-4cb3-aa5c-7ce9f778202a · Sep 25
$7,462 CAD
$5,305 USD
View
Price last confirmed 42 days ago
4 more retailers have this diamond
Prices start from $3,481 CAD

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
$3,481 CAD