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Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 5566485725

Certificate GIA 5566485725

Diamond specifications and retailer prices

From $8,713 NZD
As of November 6, 2026
Save $7,508 NZD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $16,221 NZD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct 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 5566485725. Listed at 8 retailers as of November 3, 2026, with prices from $8,713 to $16,221, a $7,508 spread on the same certified stone. NZ Jewellers lists it at $16,221. 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

1.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle53.6°
Pavilion angle36.65°
OriginNatural
Grading LabGIA
CertificateGIA 5566485725
Dimensions7.25 × 5.72 × 4.03 mm
L/W Ratio1.27
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Indented Natural, Natural
Top View
7.25 mm5.72 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5566485725
Side View
Table 71.0%Crown 53.6°GirdlePavilion 36.65°Culet: NoneDepth 70.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $16,221 NZD|Low: $8,713 NZD|High: $16,336 NZD|Avg: $11,067 NZD|-0.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7$8,713 NZD
Retailer 4$9,137 NZD
Retailer 2$9,434 NZD
Retailer 3$9,698 NZD
Retailer 6$9,698 NZD
Retailer 8$9,846 NZD
Retailer 5$15,530 NZD
NZ Jewellers$16,221 NZD

25 data points across 8 retailers

8 retailers$8,713 NZD to $16,221 NZD

A
Cheapest Retailer
-
$8,713 NZD
A
Retailer 2
-
$9,137 NZD
View
A
Retailer 3
-
$9,434 NZD
View
A
Retailer 4
-
$9,698 NZD
View
A
Retailer 5
-
$9,698 NZD
View
Retailer 6
-
$9,846 NZD
View
Price last confirmed 29 days ago
Retailer 7
-
$15,530 NZD
View
Price last confirmed 9 days ago
Most Expensive
B+
NZ Jewellers
1e726e3e-1673-418b-be9a-d7b91988b4c4 · Nov 3
$16,221 NZD
$8,992 USD
View
7 more retailers have this diamond
Prices start from $8,713 NZDSave up to $7,508 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
1.50ct Radiant
$8,713 NZD