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Radiant|Natural|GIA

1.21ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 5231852725

Certificate GIA 5231852725

Diamond specifications and retailer prices

From $6,745 NZD
As of November 6, 2026
Save $8,487 NZD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $15,232 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 5231852725. Listed at 25 retailers as of November 5, 2026, with prices from $6,745 to $15,232, a $8,487 spread on the same certified stone. NZ Jewellers lists it at $15,232. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle55.91°
OriginNatural
Grading LabGIA
CertificateGIA 5231852725
Dimensions7.16 × 5.34 × 3.65 mm
L/W Ratio1.34
Top View
7.16 mm5.34 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231852725
Side View
Table 67.0%CrownGirdle: ThickPavilion 55.91°Culet: NoneDepth 68.4%

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: $15,232 NZD|Low: $6,593 NZD|High: $15,232 NZD|Avg: $9,842 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
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 6$7,616 NZD
Retailer 12$8,251 NZD
Retailer 14$8,251 NZD
Retailer 15$8,251 NZD
Retailer 8$8,390 NZD
Retailer 16$8,882 NZD
Retailer 2$8,967 NZD
Retailer 7$9,180 NZD
Retailer 3$9,452 NZD
Retailer 4$9,452 NZD
Retailer 13$9,521 NZD
Retailer 5$9,759 NZD
Retailer 9$10,248 NZD
Retailer 10$11,112 NZD
Retailer 11$14,505 NZD
NZ Jewellers$15,232 NZD

42 data points across 16 retailers

25 retailers$6,745 NZD to $15,232 NZD

B+
Cheapest Retailer
-
$6,745 NZD
B+
Retailer 2
-
$7,192 NZD
View
B+
Retailer 3
-
$7,196 NZD
View
B+
Retailer 4
-
$7,279 NZD
View
B+
Retailer 5
-
$7,526 NZD
View
B+
Retailer 6
-
$7,616 NZD
View
Final sale: no returns
B+
Retailer 7
-
$7,679 NZD
View
B+
Retailer 8
-
$7,802 NZD
View
B+
Retailer 9
-
$8,251 NZD
View
Retailer 10
-
$8,251 NZD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$8,251 NZD
View
B+
Retailer 12
-
$8,390 NZD
View
B
Retailer 13
-
$8,882 NZD
View
B+
Retailer 14
-
$8,967 NZD
View
Retailer 15
-
$9,180 NZD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$9,387 NZD
View
B
Retailer 17
-
$9,452 NZD
View
B
Retailer 18
-
$9,452 NZD
View
B
Retailer 19
-
$9,521 NZD
View
B
Retailer 20
-
$9,759 NZD
View
Retailer 21
-
$10,055 NZD
View
Price last confirmed 15 days ago
B
Retailer 22
-
$10,248 NZD
View
B
Retailer 23
-
$11,112 NZD
View
B
Retailer 24
-
$14,505 NZD
View
Most Expensive
B
NZ Jewellers
af50deb8-0e02-43d3-920c-832d22555d90 · Nov 5
$15,232 NZD
$8,444 USD
View
24 more retailers have this diamond
Prices start from $6,745 NZDSave up to $8,487 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
$6,745 NZD