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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 $8,170 NZD
As of November 3, 2026
Save $8,897 NZD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $19,589 NZD 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: $11,004 NZD|Low: $8,170 NZD|High: $17,464 NZD|Avg: $11,257 NZD|-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$8,170 NZD
Retailer 5$8,771 NZD
Retailer 2$9,308 NZD
Retailer 10$9,687 NZD
Retailer 16$9,795 NZD
Retailer 15$10,358 NZD
Retailer 14$10,461 NZD
Retailer 12$10,915 NZD
Retailer 1$11,004 NZD
Retailer 7$11,112 NZD
Retailer 9$11,402 NZD
Retailer 8$11,577 NZD
Retailer 3$11,866 NZD
Retailer 6$12,988 NZD
Retailer 13$14,233 NZD
Retailer 11$17,067 NZD

27 data points across 16 retailers

20 retailers$8,170 NZD to $17,067 NZD

A
Cheapest Retailer
-
$8,170 NZD
A
Retailer 2
-
$8,771 NZD
View
A
Retailer 3
-
$9,308 NZD
View
B+
Retailer 4
-
$9,687 NZD
View
Final sale: no returns
B+
Retailer 5
-
$9,795 NZD
View
B+
Retailer 6
-
$10,358 NZD
View
B+
Retailer 7
-
$10,461 NZD
View
Retailer 8
-
$10,611 NZD
View
Price last confirmed 48 days ago
B+
Retailer 9
-
$10,915 NZD
View
B+
Retailer 10
-
$11,004 NZD
View
B+
Retailer 11
-
$11,054 NZD
View
Retailer 12
-
$11,112 NZD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$11,402 NZD
View
Retailer 14
-
$11,577 NZD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$11,866 NZD
View
Retailer 16
-
$12,243 NZD
View
Price last confirmed 48 days ago
B+
Retailer 17
-
$12,988 NZD
View
B+
Retailer 18
-
$14,233 NZD
View
B
Retailer 19
-
$17,067 NZD
View
Most Expensive
NZ Jewellers
066f5159-0628-47f0-b3b5-85d10d42868f · Sep 19
$19,589 NZD
$10,859 USD
View
Price last confirmed 47 days ago
19 more retailers have this diamond
Prices start from $8,170 NZDSave up to $8,897 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.

A
1.50ct Oval
$8,170 NZD