Radiant|Natural|GIA

1.21ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2546545145

Certificate GIA 2546545145

Diamond specifications and retailer prices

From $5,301 CAD
As of November 2, 2026
Save $4,169 CAD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,471 CAD at NZ Jewellers · As of November 3, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546545145. Listed at 9 retailers as of November 2, 2026, with prices from $5,301 to $9,471, a $4,169 spread on the same certified stone. NZ Jewellers lists it at $9,471. 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.86°
Pavilion angle30.58°
OriginNatural
Grading LabGIA
CertificateGIA 2546545145
Dimensions6.73 × 5.27 × 3.61 mm
L/W Ratio1.28
Top View
6.73 mm5.27 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546545145
Side View
Table 65.0%Crown 44.86°Girdle: Thick to Very ThickPavilion 30.58°Culet: NDepth 68.6%

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 2
Current: $9,471 CAD|Low: $5,197 CAD|High: $9,518 CAD|Avg: $6,407 CAD|-0.5%
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
November 7, 2026
Retailer 8$5,301 CAD
Retailer 2$5,437 CAD
Retailer 10$5,437 CAD
Retailer 12$5,640 CAD
Retailer 6$5,645 CAD
Retailer 11$5,822 CAD
Retailer 13$5,978 CAD
Retailer 3$6,013 CAD
Retailer 7$6,129 CAD
Retailer 4$6,217 CAD
Retailer 5$6,302 CAD
Retailer 9$9,091 CAD
NZ Jewellers$9,471 CAD

36 data points across 13 retailers

9 retailers$5,301 CAD to $9,471 CAD

B+
Cheapest Retailer
-
$5,301 CAD
B+
Retailer 2
-
$5,437 CAD
View
B+
Retailer 3
-
$5,437 CAD
View
B+
Retailer 4
-
$5,640 CAD
View
B+
Retailer 5
-
$5,645 CAD
View
Retailer 6
-
$5,822 CAD
View
Price last confirmed 30 days ago
B+
Retailer 7
-
$6,129 CAD
View
B
Retailer 8
-
$9,091 CAD
View
Most Expensive
B
NZ Jewellers
9b8fbcd2-e172-42d0-aa3f-7ebb04cf6ed0 · Nov 3
$9,471 CAD
$6,733 USD
View
8 more retailers have this diamond
Prices start from $5,301 CADSave up to $4,169 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
$5,301 CAD