Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

GD • G/SI1 • GIA 1232837125

Certificate GIA 1232837125

Diamond specifications and retailer prices

From $8,132 NZD
$4,583 USD
As of October 26, 2026
Save $7,052 NZD (46%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $17,212 NZD at NZ Jewellers · As of October 6, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1232837125. Listed at 30 retailers as of October 26, 2026, with a 87% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

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

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1232837125
Dimensions7.20 × 5.79 × 4.02 mm
L/W Ratio1.24
Culet sizeNone
Top View
7.20 mm5.79 mm1.50 ctG / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1232837125
Side View
Table 69.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.5%

Caratlytics Score

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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: Oct 26
Current: $12,532 NZD|Low: $8,259 NZD|High: $16,889 NZD|Avg: $10,991 NZD|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 27, 2026
Retailer 3$8,387 NZD
Retailer 12$8,605 NZD
Retailer 4$8,747 NZD
Retailer 9$9,324 NZD
Retailer 8$9,709 NZD
Retailer 11$9,869 NZD
Retailer 5$9,979 NZD
Retailer 2$10,308 NZD
Retailer 6$11,186 NZD
Retailer 1$12,532 NZD
Retailer 7$15,183 NZD
Retailer 10$16,765 NZD

29 data points across 12 retailers

30 retailers$8,132 NZD to $15,183 NZD

A
Cheapest Retailer
-
$8,132 NZD
$4,583 USD
Retailer 2
-
$8,387 NZD
$4,727 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$8,678 NZD
$4,891 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$8,747 NZD
$4,930 USD
View
Price last confirmed 6 days ago
Retailer 5
-
$9,225 NZD
$5,199 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$9,324 NZD
$5,255 USD
View
Price last confirmed 41 days ago
Retailer 7
-
$9,324 NZD
$5,255 USD
View
Price last confirmed 35 days ago
Retailer 8
-
$9,324 NZD
$5,255 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$9,324 NZD
$5,255 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$9,324 NZD
$5,255 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$9,709 NZD
£4,309 GBP
View
Price last confirmed 7 days ago
Retailer 12
-
$9,869 NZD
$5,562 USD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
$9,979 NZD
£4,428 GBP
View
Retailer 14
-
$10,025 NZD
$5,650 USD
View
Price last confirmed 7 days ago
Retailer 15
-
$10,025 NZD
$5,650 USD
View
Price last confirmed 7 days ago
Retailer 16
-
$10,308 NZD
A$8,938 AUD
View
Price last confirmed 23 days ago
Retailer 17
-
$10,362 NZD
$5,840 USD
View
Price last confirmed 7 days ago
B+
Retailer 18
-
$10,557 NZD
$5,950 USD
View
Retailer 19
-
$10,758 NZD
$6,063 USD
View
Price last confirmed 42 days ago
Retailer 20
-
$10,758 NZD
$6,063 USD
View
Price last confirmed 35 days ago
Retailer 21
-
$10,758 NZD
$6,063 USD
View
Price last confirmed 12 days ago
B+
Retailer 22
-
$11,186 NZD
€6,004 EUR
View
Retailer 23
-
$11,354 NZD
$6,399 USD
View
Price last confirmed 18 days ago
B+
Retailer 24
-
$12,532 NZD
ZAR 114,107 ZAR
View
B
Retailer 25
-
$15,183 NZD
£6,738 GBP
View
Retailer 26
-
$16,765 NZD
£7,440 GBP
View
Price last confirmed 7 days ago
Retailer 27
-
$17,212 NZD
$9,701 USD
View
Price last confirmed 36 days ago
Retailer 28
-
$17,212 NZD
$9,701 USD
View
Price last confirmed 42 days ago
Retailer 29
-
$17,212 NZD
$9,701 USD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
7f53aa3a-4172-4d8f-b950-ad0ef41b3f5d · Oct 6
$17,212 NZD
$9,701 USD
View
Price last confirmed 26 days ago
29 more retailers have this diamond
Prices start from $8,132 NZDSave up to $7,052 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
$8,132 NZD