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Oval|Natural|GIA

1.50ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 1555376298

Certificate GIA 1555376298

Diamond specifications and retailer prices

From $5,804 SGD
As of November 3, 2026
Save $6,321 SGD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $13,917 SGD at NZ Jewellers · As of September 19, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555376298. Listed at 20 retailers as of November 2, 2026, with a 109% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555376298
Dimensions8.64 × 6.26 × 3.97 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Indented Natural, Needle
Top View
8.64 mm6.26 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555376298
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $7,818 SGD|Low: $5,804 SGD|High: $12,407 SGD|Avg: $7,997 SGD|-3.0%
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
Retailer 14
Retailer 15
Retailer 16
November 4, 2026
Retailer 4$5,804 SGD
Retailer 5$6,231 SGD
Retailer 2$6,613 SGD
Retailer 10$6,882 SGD
Retailer 16$6,959 SGD
Retailer 15$7,359 SGD
Retailer 14$7,432 SGD
Retailer 12$7,755 SGD
Retailer 1$7,818 SGD
Retailer 7$7,895 SGD
Retailer 9$8,101 SGD
Retailer 8$8,225 SGD
Retailer 3$8,430 SGD
Retailer 6$9,228 SGD
Retailer 13$10,112 SGD
Retailer 11$12,125 SGD

27 data points across 16 retailers

20 retailers$5,804 SGD to $12,125 SGD

A
Cheapest Retailer
-
$5,804 SGD
A
Retailer 2
-
$6,231 SGD
View
A
Retailer 3
-
$6,613 SGD
View
B+
Retailer 4
-
$6,882 SGD
View
Final sale: no returns
B+
Retailer 5
-
$6,959 SGD
View
B+
Retailer 6
-
$7,359 SGD
View
B+
Retailer 7
-
$7,432 SGD
View
Retailer 8
-
$7,538 SGD
View
Price last confirmed 48 days ago
B+
Retailer 9
-
$7,755 SGD
View
B+
Retailer 10
-
$7,818 SGD
View
B+
Retailer 11
-
$7,854 SGD
View
Retailer 12
-
$7,895 SGD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$8,101 SGD
View
Retailer 14
-
$8,225 SGD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$8,430 SGD
View
Retailer 16
-
$8,698 SGD
View
Price last confirmed 48 days ago
B+
Retailer 17
-
$9,228 SGD
View
B+
Retailer 18
-
$10,112 SGD
View
B
Retailer 19
-
$12,125 SGD
View
Most Expensive
NZ Jewellers
066f5159-0628-47f0-b3b5-85d10d42868f · Sep 19
$13,917 SGD
$10,859 USD
View
Price last confirmed 47 days ago
19 more retailers have this diamond
Prices start from $5,804 SGDSave up to $6,321 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.

A
1.50ct Oval
$5,804 SGD