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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 $5,678 SGD
HK$34,700 HKD
As of November 1, 2026
Save $6,869 SGD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,547 SGD 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 $5,678 to $12,547, a $6,869 spread on the same certified stone. NZ Jewellers lists it at $12,547. 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: $12,547 SGD|Low: $5,629 SGD|High: $12,547 SGD|Avg: $7,949 SGD
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 1, 2026
Retailer 15$5,678 SGD
Retailer 3$6,349 SGD
Retailer 6$6,543 SGD
Retailer 11$6,626 SGD
Retailer 19$6,663 SGD
Retailer 9$6,874 SGD
Retailer 4$6,925 SGD
Retailer 18$6,999 SGD
Retailer 13$7,318 SGD
Retailer 5$7,502 SGD
Retailer 17$7,502 SGD
Retailer 20$7,502 SGD
Retailer 7$7,701 SGD
Retailer 12$7,778 SGD
Retailer 16$8,198 SGD
Retailer 8$8,656 SGD
Retailer 14$9,217 SGD
Retailer 2$11,053 SGD
Retailer 10$11,340 SGD
NZ Jewellers$12,547 SGD

37 data points across 20 retailers

20 retailers$5,678 SGD to $12,547 SGD

B+
Cheapest Retailer
-
$5,678 SGD
HK$34,700 HKD
B+
Retailer 2
-
$6,349 SGD
$4,966 USD
View
B+
Retailer 3
-
$6,543 SGD
$5,118 USD
View
B+
Retailer 4
-
$6,626 SGD
View
B+
Retailer 5
-
$6,663 SGD
View
B+
Retailer 6
-
$6,874 SGD
$5,377 USD
View
B+
Retailer 7
-
$6,925 SGD
$5,417 USD
View
Final sale: no returns
B+
Retailer 8
-
$6,999 SGD
$5,475 USD
View
B+
Retailer 9
-
$7,318 SGD
£4,507 GBP
View
B+
Retailer 10
-
$7,502 SGD
$5,868 USD
View
B+
Retailer 11
-
$7,502 SGD
$5,868 USD
View
B+
Retailer 12
-
$7,502 SGD
$5,868 USD
View
B+
Retailer 13
-
$7,701 SGD
$6,024 USD
View
Retailer 14
-
$7,778 SGD
A$9,360 AUD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$8,198 SGD
€6,107 EUR
View
B
Retailer 16
-
$8,656 SGD
$6,771 USD
View
B
Retailer 17
-
$9,217 SGD
ZAR 116,480 ZAR
View
B
Retailer 18
-
$11,053 SGD
£6,808 GBP
View
B
Retailer 19
-
$11,340 SGD
$8,870 USD
View
Most Expensive
C
NZ Jewellers
35ee2c48-f2cc-4f63-ab2b-e45bda7046bc · Oct 30
$12,547 SGD
$9,815 USD
View
19 more retailers have this diamond
Prices start from $5,678 SGDSave up to $6,869 SGD

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
$5,678 SGD