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Radiant|Natural|GIA

1.21ct E SI1 Radiant Natural Diamond

ID • E/SI1 • GIA 07

Certificate GIA 07

Diamond specifications and retailer prices

From $6,723 NZD
As of November 6, 2026
Save $8,689 NZD (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $15,413 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 E 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. Listed at 10 retailers as of November 5, 2026, with prices from $6,723 to $15,413, a $8,689 spread on the same certified stone. NZ Jewellers lists it at $15,413. 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 07
Dimensions6.84 × 5.38 × 3.75 mm
L/W Ratio1.27
Top View
6.84 mm5.38 mm1.21 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 07
Side View
Table 69.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.7%

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: $15,413 NZD|Low: $6,723 NZD|High: $15,413 NZD|Avg: $8,729 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 5$6,723 NZD
Retailer 9$7,069 NZD
Retailer 2$7,937 NZD
Retailer 4$8,015 NZD
Retailer 6$8,015 NZD
Retailer 8$8,273 NZD
Retailer 7$8,350 NZD
Retailer 3$9,158 NZD
NZ Jewellers$15,413 NZD

6 data points across 9 retailers

10 retailers$6,723 NZD to $15,413 NZD

B+
Cheapest Retailer
-
$6,723 NZD
B+
Retailer 2
-
$7,069 NZD
View
B+
Retailer 3
-
$7,937 NZD
View
Retailer 4
-
$8,015 NZD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$8,015 NZD
View
B+
Retailer 6
-
$8,273 NZD
View
B+
Retailer 7
-
$8,350 NZD
View
B
Retailer 8
-
$9,158 NZD
View
Retailer 9
-
$9,247 NZD
View
Price last confirmed 53 days ago
Most Expensive
B
NZ Jewellers
194177cb-0a30-490e-840c-199ec22db9f4 · Nov 5
$15,413 NZD
$8,544 USD
View
9 more retailers have this diamond
Prices start from $6,723 NZDSave up to $8,689 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
$6,723 NZD