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Radiant|Natural|GIA

1.51ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 6545823175

Certificate GIA 6545823175

Diamond specifications and retailer prices

From $13,397 NZD
$7,538 USD
As of November 1, 2026
Save $15,219 NZD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $28,616 NZD at NZ Jewellers · As of October 30, 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 D 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 6545823175. Listed at 14 retailers as of October 30, 2026, with prices from $13,397 to $28,616, a $15,219 spread on the same certified stone. NZ Jewellers lists it at $28,616. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545823175
Dimensions7.89 × 5.72 × 3.88 mm
L/W Ratio1.38
Top View
7.89 mm5.72 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545823175
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: 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: Nov 1
Current: $28,616 NZD|Low: $13,397 NZD|High: $28,616 NZD|Avg: $17,656 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
November 2, 2026
Retailer 6$13,397 NZD
Retailer 4$14,058 NZD
Retailer 12$14,309 NZD
Retailer 14$14,428 NZD
Retailer 11$15,502 NZD
Retailer 10$15,740 NZD
Retailer 8$15,976 NZD
Retailer 7$16,442 NZD
Retailer 2$17,400 NZD
Retailer 13$17,885 NZD
Retailer 5$17,890 NZD
Retailer 15$18,836 NZD
Retailer 3$20,397 NZD
Retailer 9$23,845 NZD
NZ Jewellers$28,616 NZD

42 data points across 15 retailers

14 retailers$13,397 NZD to $28,616 NZD

A
Cheapest Retailer
-
$13,397 NZD
$7,538 USD
B+
Retailer 2
-
$14,058 NZD
CA$10,986 CAD
View
B+
Retailer 3
-
$14,309 NZD
$8,051 USD
View
B+
Retailer 4
-
$14,428 NZD
$8,118 USD
View
B+
Retailer 5
-
$15,502 NZD
$8,722 USD
View
B+
Retailer 6
-
$15,740 NZD
$8,856 USD
View
B+
Retailer 7
-
$15,976 NZD
£7,078 GBP
View
B+
Retailer 8
-
$16,442 NZD
$9,251 USD
View
B
Retailer 9
-
$16,952 NZD
$9,538 USD
View
B+
Retailer 10
-
$17,400 NZD
€9,324 EUR
View
B+
Retailer 11
-
$17,885 NZD
$10,063 USD
View
B+
Retailer 12
-
$17,890 NZD
$10,066 USD
View
B
Retailer 13
-
$23,845 NZD
£10,564 GBP
View
Most Expensive
B
NZ Jewellers
ad15a242-6351-421f-8ec9-3852edf42832 · Oct 30
$28,616 NZD
$16,101 USD
View
13 more retailers have this diamond
Prices start from $13,397 NZDSave up to $15,219 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
$13,397 NZD