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Radiant|Natural|GIA

1.21ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2546545145

Certificate GIA 2546545145

Diamond specifications and retailer prices

From $6,799 NZD
As of November 2, 2026
Save $5,347 NZD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $12,146 NZD 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 $6,799 to $12,146, a $5,347 spread on the same certified stone. NZ Jewellers lists it at $12,146. 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
Colour
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: $12,146 NZD|Low: $6,665 NZD|High: $12,207 NZD|Avg: $8,216 NZD|-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$6,799 NZD
Retailer 2$6,972 NZD
Retailer 10$6,972 NZD
Retailer 12$7,234 NZD
Retailer 6$7,239 NZD
Retailer 11$7,466 NZD
Retailer 13$7,667 NZD
Retailer 3$7,712 NZD
Retailer 7$7,860 NZD
Retailer 4$7,973 NZD
Retailer 5$8,081 NZD
Retailer 9$11,659 NZD
NZ Jewellers$12,146 NZD

36 data points across 13 retailers

9 retailers$6,799 NZD to $12,146 NZD

B+
Cheapest Retailer
-
$6,799 NZD
B+
Retailer 2
-
$6,972 NZD
View
B+
Retailer 3
-
$6,972 NZD
View
B+
Retailer 4
-
$7,234 NZD
View
B+
Retailer 5
-
$7,239 NZD
View
Retailer 6
-
$7,466 NZD
View
Price last confirmed 30 days ago
B+
Retailer 7
-
$7,860 NZD
View
B
Retailer 8
-
$11,659 NZD
View
Most Expensive
B
NZ Jewellers
9b8fbcd2-e172-42d0-aa3f-7ebb04cf6ed0 · Nov 3
$12,146 NZD
$6,733 USD
View
8 more retailers have this diamond
Prices start from $6,799 NZDSave up to $5,347 NZD

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
$6,799 NZD