Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 1159967716

Certificate GIA 1159967716

Diamond specifications and retailer prices

From $8,522 NZD
$4,795 USD
As of November 2, 2026
Save $10,431 NZD (55%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $18,953 NZD 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 $8,522 to $18,953, a $10,431 spread on the same certified stone. NZ Jewellers lists it at $18,953. 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: $12,380 NZD|Low: $8,211 NZD|High: $16,897 NZD|Avg: $10,880 NZD|+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$8,522 NZD
Retailer 9$9,002 NZD
Retailer 11$9,032 NZD
Retailer 4$9,589 NZD
Retailer 5$9,816 NZD
Retailer 2$10,266 NZD
Retailer 12$10,266 NZD
Retailer 13$10,451 NZD
Retailer 6$10,871 NZD
Retailer 10$11,202 NZD
Retailer 1$12,380 NZD
Retailer 8$13,923 NZD
Retailer 7$16,696 NZD

44 data points across 13 retailers

26 retailers$8,522 NZD to $18,953 NZD

B+
Cheapest Retailer
-
$8,522 NZD
$4,795 USD
B+
Retailer 2
-
$8,853 NZD
$4,981 USD
View
B+
Retailer 3
-
$8,954 NZD
$5,038 USD
View
B+
Retailer 4
-
$9,002 NZD
$5,065 USD
View
B+
Retailer 5
-
$9,032 NZD
$5,082 USD
View
Final sale: no returns
B+
Retailer 6
-
$9,070 NZD
$5,103 USD
View
B+
Retailer 7
-
$9,319 NZD
A$8,067 AUD
View
B+
Retailer 8
-
$9,556 NZD
CA$7,468 CAD
View
B+
Retailer 9
-
$9,589 NZD
$5,395 USD
View
B+
Retailer 10
-
$9,816 NZD
$5,523 USD
View
B+
Retailer 11
-
$10,266 NZD
$5,776 USD
View
B+
Retailer 12
-
$10,266 NZD
$5,776 USD
View
B+
Retailer 13
-
$10,266 NZD
$5,776 USD
View
B+
Retailer 14
-
$10,451 NZD
$5,880 USD
View
B
Retailer 15
-
$10,824 NZD
$6,090 USD
View
B+
Retailer 16
-
$10,871 NZD
£4,816 GBP
View
Retailer 17
-
$11,202 NZD
A$9,697 AUD
View
Price last confirmed 22 days ago
B
Retailer 18
-
$11,846 NZD
$6,665 USD
View
B
Retailer 19
-
$12,380 NZD
€6,634 EUR
View
Retailer 20
-
$12,496 NZD
$7,031 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$12,839 NZD
$7,224 USD
View
B
Retailer 22
-
$13,503 NZD
A$11,688 AUD
View
B
Retailer 23
-
$13,923 NZD
ZAR 126,559 ZAR
View
C
Retailer 24
-
$16,422 NZD
$9,240 USD
View
B
Retailer 25
-
$16,696 NZD
£7,397 GBP
View
Most Expensive
C
NZ Jewellers
0af57ebc-7dca-4e67-8155-bef61d7e7a1b · Oct 30
$18,953 NZD
$10,664 USD
View
25 more retailers have this diamond
Prices start from $8,522 NZDSave up to $10,431 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.

B+
1.50ct Radiant
$8,522 NZD