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Oval|Natural|GIA

1.50ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2557796851

Certificate GIA 2557796851

Diamond specifications and retailer prices

From HK$27,717 HKD
As of November 1, 2026
Save HK$39,309 HKD (59%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$67,026 HKD 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557796851. Listed at 10 retailers as of October 30, 2026, with prices from HK$27,717 to HK$67,026, a HK$39,309 spread on the same certified stone. NZ Jewellers lists it at HK$67,026. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.73°
OriginNatural
Grading LabGIA
CertificateGIA 2557796851
Dimensions8.80 × 6.25 × 4.03 mm
L/W Ratio1.41
Key to symbols
Crystal, Feather, Needle
Top View
8.80 mm6.25 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557796851
Side View
Table 56.0%CrownGirdle: STK-THKPavilion 35.73°Culet: NoneDepth 64.4%

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 1
Current: HK$67,026 HKD|Low: HK$27,717 HKD|High: HK$70,243 HKD|Avg: HK$43,448 HKD|-4.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 2HK$27,717 HKD
Retailer 3HK$31,946 HKD
Retailer 5HK$33,901 HKD
Retailer 9HK$35,909 HKD
Retailer 4HK$37,769 HKD
Retailer 8HK$38,475 HKD
Retailer 10HK$40,940 HKD
Retailer 6HK$43,694 HKD
Retailer 7HK$61,608 HKD
NZ JewellersHK$67,026 HKD

40 data points across 10 retailers

10 retailersHK$27,717 HKD to HK$67,026 HKD

A
Cheapest Retailer
-
HK$27,717 HKD
A
Retailer 2
-
HK$31,946 HKD
€3,878 EUR
View
A
Retailer 3
-
HK$33,901 HKD
$4,321 USD
View
A
Retailer 4
-
HK$35,909 HKD
SGD 6,185 SGD
View
A
Retailer 5
-
HK$37,769 HKD
$4,814 USD
View
A
Retailer 6
-
HK$38,475 HKD
$4,904 USD
View
B+
Retailer 7
-
HK$40,940 HKD
A$8,028 AUD
View
B+
Retailer 8
-
HK$43,694 HKD
€5,304 EUR
View
B+
Retailer 9
-
HK$61,608 HKD
£6,183 GBP
View
Most Expensive
B
NZ Jewellers
565532c0-953b-4f2d-aed4-fc30a2b45f0d · Oct 30
HK$67,026 HKD
$8,543 USD
View
9 more retailers have this diamond
Prices start from HK$27,717 HKDSave up to HK$39,309 HKD

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
HK$27,717 HKD