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Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

ID • G/SI1 • GIA 5566500832

Certificate GIA 5566500832

Diamond specifications and retailer prices

From $8,122 NZD
HK$35,700 HKD
As of October 30, 2026
Save $10,785 NZD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $18,907 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566500832. Listed at 19 retailers as of October 27, 2026, with prices from $8,122 to $18,907, a $10,785 spread on the same certified stone. NZ Jewellers lists it at $18,907. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566500832
Dimensions7.56 × 5.59 × 3.90 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.56 mm5.59 mm1.51 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566500832
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.8%

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: $18,907 NZD|Low: $7,803 NZD|High: $19,365 NZD|Avg: $11,325 NZD|-2.4%
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
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 5$8,122 NZD
Retailer 21$8,389 NZD
Retailer 3$8,744 NZD
Retailer 9$8,978 NZD
Retailer 19$9,004 NZD
Retailer 4$9,176 NZD
Retailer 2$9,257 NZD
Retailer 8$9,452 NZD
Retailer 15$9,615 NZD
Retailer 6$9,645 NZD
Retailer 7$9,669 NZD
Retailer 14$9,907 NZD
Retailer 13$10,178 NZD
Retailer 11$10,368 NZD
Retailer 17$10,713 NZD
Retailer 16$10,840 NZD
Retailer 20$12,332 NZD
Retailer 10$13,348 NZD
Retailer 18$16,744 NZD
Retailer 12$17,010 NZD
NZ Jewellers$18,907 NZD

15 data points across 21 retailers

19 retailers$8,122 NZD to $18,907 NZD

A
Cheapest Retailer
-
$8,122 NZD
HK$35,700 HKD
A
Retailer 2
-
$8,389 NZD
$4,720 USD
View
A
Retailer 3
-
$8,744 NZD
$4,920 USD
View
A
Retailer 4
-
$8,978 NZD
SGD 6,826 SGD
View
A
Retailer 5
-
$9,004 NZD
$5,066 USD
View
A
Retailer 6
-
$9,176 NZD
$5,163 USD
View
Retailer 7
-
$9,257 NZD
€4,961 EUR
View
Price last confirmed 3 days ago
A
Retailer 8
-
$9,615 NZD
$5,410 USD
View
A
Retailer 9
-
$9,645 NZD
A$8,349 AUD
View
A
Retailer 10
-
$9,669 NZD
$5,440 USD
View
Retailer 11
-
$9,907 NZD
$5,574 USD
View
Price last confirmed 15 days ago
A
Retailer 12
-
$10,178 NZD
£4,509 GBP
View
A
Retailer 13
-
$10,713 NZD
£4,746 GBP
View
A
Retailer 14
-
$10,840 NZD
$6,099 USD
View
B+
Retailer 15
-
$12,332 NZD
€6,608 EUR
View
B+
Retailer 16
-
$13,348 NZD
ZAR 121,331 ZAR
View
B+
Retailer 17
-
$16,744 NZD
£7,418 GBP
View
Retailer 18
-
$17,010 NZD
$9,571 USD
View
Price last confirmed 14 days ago
Most Expensive
B
NZ Jewellers
ee3d4bad-e84d-4bc9-bc88-51682b85e7d6 · Oct 27
$18,907 NZD
$10,638 USD
View
18 more retailers have this diamond
Prices start from $8,122 NZDSave up to $10,785 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
$8,122 NZD