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Oval|Natural|GIA

1.50ct I SI1 Oval Natural Diamond

GD • I/SI1 • GIA 1435731098

Certificate GIA 1435731098

Diamond specifications and retailer prices

From $7,881 NZD
HK$34,700 HKD
As of November 1, 2026
Save $9,534 NZD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $17,415 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval 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 1435731098. Listed at 20 retailers as of October 30, 2026, with prices from $7,881 to $17,415, a $9,534 spread on the same certified stone. NZ Jewellers lists it at $17,415. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle45.07°
Pavilion angle33.29°
OriginNatural
Grading LabGIA
CertificateGIA 1435731098
Dimensions8.94 × 6.08 × 3.71 mm
L/W Ratio1.47
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
8.94 mm6.08 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1435731098
Side View
Table 58.0%Crown 45.07°Girdle: VTK-VTKPavilion 33.29°Culet: NoneDepth 61.1%

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 1
Current: $17,415 NZD|Low: $7,813 NZD|High: $17,415 NZD|Avg: $11,043 NZD
NZ Jewellers
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
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 16$7,881 NZD
Retailer 3$8,811 NZD
Retailer 6$9,081 NZD
Retailer 11$9,196 NZD
Retailer 19$9,247 NZD
Retailer 9$9,540 NZD
Retailer 4$9,611 NZD
Retailer 18$9,714 NZD
Retailer 13$10,157 NZD
Retailer 5$10,412 NZD
Retailer 17$10,412 NZD
Retailer 20$10,412 NZD
Retailer 7$10,688 NZD
Retailer 12$10,795 NZD
Retailer 2$11,374 NZD
Retailer 8$12,014 NZD
Retailer 15$12,793 NZD
Retailer 14$15,341 NZD
Retailer 10$15,739 NZD
NZ Jewellers$17,415 NZD

38 data points across 20 retailers

20 retailers$7,881 NZD to $17,415 NZD

B+
Cheapest Retailer
-
$7,881 NZD
HK$34,700 HKD
B+
Retailer 2
-
$8,811 NZD
$4,966 USD
View
B+
Retailer 3
-
$9,081 NZD
$5,118 USD
View
B+
Retailer 4
-
$9,196 NZD
SGD 7,004 SGD
View
B+
Retailer 5
-
$9,247 NZD
SGD 7,043 SGD
View
B+
Retailer 6
-
$9,540 NZD
$5,377 USD
View
B+
Retailer 7
-
$9,611 NZD
$5,417 USD
View
Final sale: no returns
B+
Retailer 8
-
$9,714 NZD
$5,475 USD
View
B+
Retailer 9
-
$10,157 NZD
£4,507 GBP
View
B+
Retailer 10
-
$10,412 NZD
$5,868 USD
View
B+
Retailer 11
-
$10,412 NZD
$5,868 USD
View
B+
Retailer 12
-
$10,412 NZD
$5,868 USD
View
B+
Retailer 13
-
$10,688 NZD
$6,024 USD
View
Retailer 14
-
$10,795 NZD
A$9,360 AUD
View
Price last confirmed 29 days ago
B
Retailer 15
-
$11,374 NZD
€6,105 EUR
View
B
Retailer 16
-
$12,014 NZD
$6,771 USD
View
B
Retailer 17
-
$12,793 NZD
ZAR 116,480 ZAR
View
B
Retailer 18
-
$15,341 NZD
£6,808 GBP
View
B
Retailer 19
-
$15,739 NZD
$8,870 USD
View
Most Expensive
C
NZ Jewellers
35ee2c48-f2cc-4f63-ab2b-e45bda7046bc · Oct 30
$17,415 NZD
$9,815 USD
View
19 more retailers have this diamond
Prices start from $7,881 NZDSave up to $9,534 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 Oval
$7,881 NZD