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Radiant|Natural|GIA

1.21ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 5553821034

Certificate GIA 5553821034

Diamond specifications and retailer prices

From $4,672 NZD
As of November 4, 2026
Save $4,862 NZD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,534 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 H 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 5553821034. Listed at 13 retailers as of November 4, 2026, with prices from $4,672 to $9,534, a $4,862 spread on the same certified stone. NZ Jewellers lists it at $9,534. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553821034
Dimensions6.98 × 5.30 × 3.63 mm
L/W Ratio1.32
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
6.98 mm5.30 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553821034
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $9,534 NZD|Low: $4,672 NZD|High: $9,608 NZD|Avg: $6,134 NZD
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 4$4,672 NZD
Retailer 13$4,899 NZD
Retailer 5$5,051 NZD
Retailer 7$5,381 NZD
Retailer 9$5,471 NZD
Retailer 11$5,471 NZD
Retailer 2$5,682 NZD
Retailer 6$5,792 NZD
Retailer 3$5,991 NZD
Retailer 8$6,002 NZD
Retailer 10$6,314 NZD
Retailer 12$9,200 NZD
NZ Jewellers$9,534 NZD

29 data points across 13 retailers

13 retailers$4,672 NZD to $9,534 NZD

A
Cheapest Retailer
-
$4,672 NZD
B+
Retailer 2
-
$4,899 NZD
View
B+
Retailer 3
-
$5,051 NZD
View
Final sale: no returns
B+
Retailer 4
-
$5,381 NZD
View
Retailer 5
-
$5,471 NZD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$5,471 NZD
View
B+
Retailer 7
-
$5,682 NZD
View
B+
Retailer 8
-
$5,792 NZD
View
B
Retailer 9
-
$5,991 NZD
View
B+
Retailer 10
-
$6,002 NZD
View
B+
Retailer 11
-
$6,314 NZD
View
Retailer 12
-
$9,200 NZD
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
b4174110-3705-4efe-92d9-c6361fdc8e45 · Nov 5
$9,534 NZD
$5,285 USD
View
12 more retailers have this diamond
Prices start from $4,672 NZDSave up to $4,862 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.

A
1.21ct Radiant
$4,672 NZD