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Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

ID • G/SI1 • GIA 2245026590

Certificate GIA 2245026590

Diamond specifications and retailer prices

From $10,748 NZD
As of November 4, 2026
Save $9,882 NZD (48%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $20,630 NZD at MOH London · As of November 4, 2026
View at MOH London

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 2245026590. Listed at 20 retailers as of November 4, 2026, with prices from $10,748 to $20,630, a $9,882 spread on the same certified stone. MOH London lists it at $20,630. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245026590
Dimensions8.15 × 5.78 × 3.86 mm
L/W Ratio1.41
Girdle conditionPolished
Top View
8.15 mm5.78 mm1.50 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245026590
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCulet: NDepth 66.9%

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 4
Current: $20,630 NZD|Low: $10,652 NZD|High: $21,524 NZD|Avg: $13,493 NZD|-4.2%
MOH London
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
Retailer 17
November 7, 2026
Retailer 8$10,748 NZD
Retailer 15$10,921 NZD
Retailer 5$11,500 NZD
Retailer 11$12,000 NZD
Retailer 4$12,113 NZD
Retailer 16$12,411 NZD
Retailer 13$12,420 NZD
Retailer 6$12,681 NZD
Retailer 7$12,791 NZD
Retailer 2$13,114 NZD
Retailer 9$13,446 NZD
Retailer 10$14,231 NZD
Retailer 3$14,361 NZD
Retailer 17$15,523 NZD
Retailer 12$15,858 NZD
Retailer 14$18,108 NZD
MOH London$20,630 NZD

15 data points across 17 retailers

20 retailers$10,748 NZD to $20,630 NZD

A
Cheapest Retailer
-
$10,748 NZD
A
Retailer 2
-
$10,921 NZD
View
A
Retailer 3
-
$11,500 NZD
View
B+
Retailer 4
-
$11,879 NZD
View
B+
Retailer 5
-
$11,963 NZD
View
A
Retailer 6
-
$12,000 NZD
View
Retailer 7
-
$12,101 NZD
View
Price last confirmed 37 days ago
B+
Retailer 8
-
$12,113 NZD
View
B+
Retailer 9
-
$12,411 NZD
View
Final sale: no returns
B+
Retailer 10
-
$12,420 NZD
View
B+
Retailer 11
-
$12,681 NZD
View
B+
Retailer 12
-
$12,791 NZD
View
B+
Retailer 13
-
$13,114 NZD
View
B+
Retailer 14
-
$13,446 NZD
View
B+
Retailer 15
-
$14,231 NZD
View
Retailer 16
-
$14,361 NZD
View
Price last confirmed 16 days ago
B
Retailer 17
-
$15,523 NZD
View
B
Retailer 18
-
$15,858 NZD
View
B
Retailer 19
-
$18,108 NZD
View
Most Expensive
B
MOH London
EB269E7D9 · Nov 4
$20,630 NZD
£9,005 GBP
View
19 more retailers have this diamond
Prices start from $10,748 NZDSave up to $9,882 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
$10,748 NZD