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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 $6,323 AUD
HK$34,700 HKD
As of November 1, 2026
Save $7,650 AUD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $13,973 AUD 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 $6,323 to $13,973, a $7,650 spread on the same certified stone. NZ Jewellers lists it at $13,973. 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: $13,973 AUD|Low: $6,268 AUD|High: $13,973 AUD|Avg: $8,855 AUD
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 15$6,323 AUD
Retailer 3$7,070 AUD
Retailer 6$7,286 AUD
Retailer 11$7,378 AUD
Retailer 19$7,420 AUD
Retailer 9$7,655 AUD
Retailer 4$7,712 AUD
Retailer 18$7,794 AUD
Retailer 2$8,149 AUD
Retailer 5$8,354 AUD
Retailer 17$8,354 AUD
Retailer 20$8,354 AUD
Retailer 7$8,576 AUD
Retailer 12$8,661 AUD
Retailer 16$9,129 AUD
Retailer 8$9,639 AUD
Retailer 14$10,264 AUD
Retailer 13$12,309 AUD
Retailer 10$12,628 AUD
NZ Jewellers$13,973 AUD

38 data points across 20 retailers

20 retailers$6,323 AUD to $13,973 AUD

B+
Cheapest Retailer
-
$6,323 AUD
HK$34,700 HKD
B+
Retailer 2
-
$7,070 AUD
$4,966 USD
View
B+
Retailer 3
-
$7,286 AUD
$5,118 USD
View
B+
Retailer 4
-
$7,378 AUD
SGD 7,004 SGD
View
B+
Retailer 5
-
$7,420 AUD
SGD 7,043 SGD
View
B+
Retailer 6
-
$7,655 AUD
$5,377 USD
View
B+
Retailer 7
-
$7,712 AUD
$5,417 USD
View
Final sale: no returns
B+
Retailer 8
-
$7,794 AUD
$5,475 USD
View
B+
Retailer 9
-
$8,149 AUD
£4,507 GBP
View
B+
Retailer 10
-
$8,354 AUD
$5,868 USD
View
B+
Retailer 11
-
$8,354 AUD
$5,868 USD
View
B+
Retailer 12
-
$8,354 AUD
$5,868 USD
View
B+
Retailer 13
-
$8,576 AUD
$6,024 USD
View
Retailer 14
-
$8,661 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$9,129 AUD
€6,107 EUR
View
B
Retailer 16
-
$9,639 AUD
$6,771 USD
View
B
Retailer 17
-
$10,264 AUD
ZAR 116,480 ZAR
View
B
Retailer 18
-
$12,309 AUD
£6,808 GBP
View
B
Retailer 19
-
$12,628 AUD
$8,870 USD
View
Most Expensive
C
NZ Jewellers
35ee2c48-f2cc-4f63-ab2b-e45bda7046bc · Oct 30
$13,973 AUD
$9,815 USD
View
19 more retailers have this diamond
Prices start from $6,323 AUDSave up to $7,650 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 Oval
$6,323 AUD