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Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

ID • E/SI2 • GIA 6233751025

Certificate GIA 6233751025

Diamond specifications and retailer prices

From $9,054 NZD
£4,004 GBP
As of October 30, 2026
Save $6,969 NZD (43%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $16,023 NZD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6233751025. Listed at 6 retailers as of October 27, 2026, with prices from $9,054 to $16,023, a $6,969 spread on the same certified stone. NZ Jewellers lists it at $16,023. 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

1.51
Carat
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle44.54°
Pavilion angle31.45°
OriginNatural
Grading LabGIA
CertificateGIA 6233751025
Dimensions7.38 × 5.68 × 3.86 mm
L/W Ratio1.30
Top View
7.38 mm5.68 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6233751025
Side View
Table 67.0%Crown 44.54°Girdle: STK-THKPavilion 31.45°Culet: NoneDepth 67.9%

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: Oct 30
Current: $16,023 NZD|Low: $8,605 NZD|High: $16,267 NZD|Avg: $11,433 NZD|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8$8,605 NZD
Retailer 2$9,054 NZD
Retailer 5$9,579 NZD
Retailer 7$9,579 NZD
Retailer 6$9,793 NZD
Retailer 9$10,175 NZD
Retailer 3$10,719 NZD
Retailer 10$10,891 NZD
Retailer 11$14,376 NZD
Retailer 4$15,340 NZD
NZ Jewellers$16,023 NZD

29 data points across 11 retailers

6 retailers$9,054 NZD to $16,023 NZD

A
Cheapest Retailer
-
$9,054 NZD
£4,004 GBP
A
Retailer 2
-
$9,579 NZD
$5,380 USD
View
A
Retailer 3
-
$9,579 NZD
$5,380 USD
View
A
Retailer 4
-
$9,793 NZD
$5,500 USD
View
B+
Retailer 5
-
$15,340 NZD
£6,784 GBP
View
Most Expensive
B+
NZ Jewellers
00748c62-3f1a-4e06-8ebe-5455db0be285 · Oct 27
$16,023 NZD
$8,999 USD
View
5 more retailers have this diamond
Prices start from $9,054 NZDSave up to $6,969 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
1.51ct Radiant
$9,054 NZD