CaratHunter
Plans
Radiant|Natural|GIA

1.21ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 1443103827

Certificate GIA 1443103827

Diamond specifications and retailer prices

From $7,490 NZD
As of November 6, 2026
Save $9,093 NZD (55%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $16,583 NZD 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 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 1443103827. Listed at 29 retailers as of November 5, 2026, with prices from $7,490 to $16,583, a $9,093 spread on the same certified stone. NZ Jewellers lists it at $16,583. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1443103827
Dimensions6.70 × 5.35 × 3.73 mm
L/W Ratio1.25
Culet sizeNone
Top View
6.70 mm5.35 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1443103827
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.6%

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 6
Current: $9,579 NZD|Low: $7,897 NZD|High: $15,981 NZD|Avg: $10,502 NZD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 8$7,897 NZD
Retailer 6$8,361 NZD
Retailer 1$9,579 NZD
Retailer 2$9,618 NZD
Retailer 7$9,995 NZD
Retailer 3$11,155 NZD
Retailer 4$12,097 NZD
Retailer 5$15,750 NZD

37 data points across 8 retailers

29 retailers$7,490 NZD to $16,583 NZD

B+
Cheapest Retailer
-
$7,490 NZD
B+
Retailer 2
-
$7,746 NZD
View
B+
Retailer 3
-
$7,833 NZD
View
B+
Retailer 4
-
$7,897 NZD
View
Final sale: no returns
B+
Retailer 5
-
$7,928 NZD
View
B+
Retailer 6
-
$8,177 NZD
View
B+
Retailer 7
-
$8,361 NZD
View
B+
Retailer 8
-
$8,421 NZD
View
B+
Retailer 9
-
$8,451 NZD
View
B
Retailer 10
-
$8,900 NZD
View
Retailer 11
-
$8,983 NZD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$8,983 NZD
View
B
Retailer 13
-
$8,983 NZD
View
B
Retailer 14
-
$9,137 NZD
View
B
Retailer 15
-
$9,579 NZD
View
B
Retailer 16
-
$9,618 NZD
View
B
Retailer 17
-
$9,790 NZD
View
Retailer 18
-
$9,995 NZD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$10,066 NZD
View
B
Retailer 20
-
$10,066 NZD
View
B
Retailer 21
-
$10,365 NZD
View
B
Retailer 22
-
$10,409 NZD
View
Retailer 23
-
$10,941 NZD
View
Price last confirmed 15 days ago
B
Retailer 24
-
$11,155 NZD
View
B
Retailer 25
-
$11,420 NZD
View
B
Retailer 26
-
$12,097 NZD
View
B
Retailer 27
-
$14,357 NZD
View
B
Retailer 28
-
$15,750 NZD
View
Most Expensive
B
NZ Jewellers
9a27df5b-79d0-4380-aa40-91ee1a47bf2e · Nov 5
$16,583 NZD
$9,193 USD
View
28 more retailers have this diamond
Prices start from $7,490 NZDSave up to $9,093 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
$7,490 NZD