Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

GD • G/SI1 • GIA 1232837125

Certificate GIA 1232837125

Diamond specifications and retailer prices

From $6,524 AUD
$4,583 USD
As of October 26, 2026
Save $5,658 AUD (46%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $13,810 AUD 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: $10,055 AUD|Low: $6,627 AUD|High: $13,551 AUD|Avg: $8,818 AUD|+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$6,729 AUD
Retailer 12$6,904 AUD
Retailer 4$7,018 AUD
Retailer 9$7,481 AUD
Retailer 8$7,790 AUD
Retailer 11$7,918 AUD
Retailer 5$8,006 AUD
Retailer 2$8,271 AUD
Retailer 6$8,975 AUD
Retailer 1$10,055 AUD
Retailer 7$12,182 AUD
Retailer 10$13,451 AUD

29 data points across 12 retailers

30 retailers$6,524 AUD to $12,182 AUD

A
Cheapest Retailer
-
$6,524 AUD
$4,583 USD
A
Retailer 2
-
$6,729 AUD
$4,727 USD
View
Retailer 3
-
$6,963 AUD
$4,891 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$7,018 AUD
$4,930 USD
View
Price last confirmed 6 days ago
Retailer 5
-
$7,402 AUD
$5,199 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$7,481 AUD
$5,255 USD
View
Price last confirmed 41 days ago
Retailer 7
-
$7,481 AUD
$5,255 USD
View
Price last confirmed 35 days ago
Retailer 8
-
$7,481 AUD
$5,255 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$7,481 AUD
$5,255 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$7,481 AUD
$5,255 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$7,790 AUD
£4,309 GBP
View
Price last confirmed 7 days ago
Retailer 12
-
$7,918 AUD
$5,562 USD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
$8,006 AUD
£4,428 GBP
View
B+
Retailer 14
-
$8,043 AUD
$5,650 USD
View
B+
Retailer 15
-
$8,043 AUD
$5,650 USD
View
Price last confirmed 7 days ago
Retailer 16
-
$8,271 AUD
View
Price last confirmed 23 days ago
Retailer 17
-
$8,314 AUD
$5,840 USD
View
Price last confirmed 7 days ago
B+
Retailer 18
-
$8,470 AUD
$5,950 USD
View
Retailer 19
-
$8,631 AUD
$6,063 USD
View
Price last confirmed 42 days ago
Retailer 20
-
$8,631 AUD
$6,063 USD
View
Price last confirmed 35 days ago
Retailer 21
-
$8,631 AUD
$6,063 USD
View
Price last confirmed 12 days ago
B+
Retailer 22
-
$8,975 AUD
€6,004 EUR
View
Retailer 23
-
$9,110 AUD
$6,399 USD
View
Price last confirmed 18 days ago
B+
Retailer 24
-
$10,055 AUD
ZAR 114,107 ZAR
View
B
Retailer 25
-
$12,182 AUD
£6,738 GBP
View
Retailer 26
-
$13,451 AUD
£7,440 GBP
View
Price last confirmed 7 days ago
Retailer 27
-
$13,810 AUD
$9,701 USD
View
Price last confirmed 36 days ago
Retailer 28
-
$13,810 AUD
$9,701 USD
View
Price last confirmed 42 days ago
Retailer 29
-
$13,810 AUD
$9,701 USD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
7f53aa3a-4172-4d8f-b950-ad0ef41b3f5d · Oct 6
$13,810 AUD
$9,701 USD
View
Price last confirmed 26 days ago
29 more retailers have this diamond
Prices start from $6,524 AUDSave up to $5,658 AUD

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
$6,524 AUD