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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 1159967716

Certificate GIA 1159967716

Diamond specifications and retailer prices

From $6,826 AUD
$4,795 USD
As of November 2, 2026
Save $8,355 AUD (55%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $15,181 AUD at NZ Jewellers · As of October 30, 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 I 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 1159967716. Listed at 26 retailers as of October 30, 2026, with prices from $6,826 to $15,181, a $8,355 spread on the same certified stone. NZ Jewellers lists it at $15,181. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1159967716
Dimensions7.23 × 5.84 × 3.89 mm
L/W Ratio1.24
Culet sizeNone
Top View
7.23 mm5.84 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1159967716
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $9,916 AUD|Low: $6,577 AUD|High: $13,534 AUD|Avg: $8,714 AUD|+2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 3$6,826 AUD
Retailer 9$7,211 AUD
Retailer 11$7,235 AUD
Retailer 4$7,680 AUD
Retailer 5$7,863 AUD
Retailer 2$8,223 AUD
Retailer 12$8,223 AUD
Retailer 13$8,371 AUD
Retailer 6$8,707 AUD
Retailer 10$8,973 AUD
Retailer 1$9,916 AUD
Retailer 8$11,152 AUD
Retailer 7$13,374 AUD

44 data points across 13 retailers

26 retailers$6,826 AUD to $15,181 AUD

B+
Cheapest Retailer
-
$6,826 AUD
$4,795 USD
B+
Retailer 2
-
$7,091 AUD
$4,981 USD
View
B+
Retailer 3
-
$7,172 AUD
$5,038 USD
View
B+
Retailer 4
-
$7,211 AUD
$5,065 USD
View
B+
Retailer 5
-
$7,235 AUD
$5,082 USD
View
Final sale: no returns
B+
Retailer 6
-
$7,265 AUD
$5,103 USD
View
B+
Retailer 7
-
$7,465 AUD
View
B+
Retailer 8
-
$7,654 AUD
CA$7,468 CAD
View
B+
Retailer 9
-
$7,680 AUD
$5,395 USD
View
B+
Retailer 10
-
$7,863 AUD
$5,523 USD
View
B+
Retailer 11
-
$8,223 AUD
$5,776 USD
View
B+
Retailer 12
-
$8,223 AUD
$5,776 USD
View
B+
Retailer 13
-
$8,223 AUD
$5,776 USD
View
B+
Retailer 14
-
$8,371 AUD
$5,880 USD
View
B
Retailer 15
-
$8,670 AUD
$6,090 USD
View
B+
Retailer 16
-
$8,707 AUD
£4,816 GBP
View
Retailer 17
-
$8,973 AUD
View
Price last confirmed 22 days ago
B
Retailer 18
-
$9,488 AUD
$6,665 USD
View
B
Retailer 19
-
$9,916 AUD
€6,634 EUR
View
Retailer 20
-
$10,009 AUD
$7,031 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$10,284 AUD
$7,224 USD
View
B
Retailer 22
-
$10,815 AUD
View
B
Retailer 23
-
$11,152 AUD
ZAR 126,559 ZAR
View
C
Retailer 24
-
$13,154 AUD
$9,240 USD
View
B
Retailer 25
-
$13,374 AUD
£7,397 GBP
View
Most Expensive
C
NZ Jewellers
0af57ebc-7dca-4e67-8155-bef61d7e7a1b · Oct 30
$15,181 AUD
$10,664 USD
View
25 more retailers have this diamond
Prices start from $6,826 AUDSave up to $8,355 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.

B+
1.50ct Radiant
$6,826 AUD