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Oval|Natural|GIA

1.50ct M SI1 Oval Natural Diamond

ID • M/SI1 • GIA 6511873729

Certificate GIA 6511873729

Diamond specifications and retailer prices

From HK$14,938 HKD
As of November 6, 2026
Save HK$20,636 HKD (58%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$35,574 HKD at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6511873729. Listed at 11 retailers as of November 5, 2026, with prices from HK$14,938 to HK$35,574, a HK$20,636 spread on the same certified stone. NZ Jewellers lists it at HK$35,574. 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
M
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6511873729
Dimensions9.57 × 6.08 × 4.04 mm
L/W Ratio1.57
Top View
9.57 mm6.08 mm1.50 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6511873729
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.4%

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 6
Current: HK$35,574 HKD|Low: HK$14,938 HKD|High: HK$36,577 HKD|Avg: HK$19,913 HKD|-2.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2HK$14,938 HKD
Retailer 11HK$16,020 HKD
Retailer 4HK$16,474 HKD
Retailer 3HK$17,015 HKD
Retailer 9HK$17,015 HKD
Retailer 10HK$17,164 HKD
Retailer 8HK$17,807 HKD
Retailer 6HK$19,084 HKD
Retailer 7HK$20,769 HKD
Retailer 5HK$22,454 HKD
NZ JewellersHK$35,574 HKD

43 data points across 11 retailers

11 retailersHK$14,938 HKD to HK$35,574 HKD

A
Cheapest Retailer
-
HK$14,938 HKD
A
Retailer 2
-
HK$16,020 HKD
View
A
Retailer 3
-
HK$16,474 HKD
View
B+
Retailer 4
-
HK$17,015 HKD
View
Retailer 5
-
HK$17,015 HKD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
HK$17,164 HKD
View
B+
Retailer 7
-
HK$17,807 HKD
View
B+
Retailer 8
-
HK$19,084 HKD
View
B+
Retailer 9
-
HK$20,769 HKD
View
B+
Retailer 10
-
HK$22,454 HKD
View
Most Expensive
B
NZ Jewellers
1a9c3cda-e926-45ff-bfd1-33e5176d1031 · Nov 5
HK$35,574 HKD
$4,539 USD
View
10 more retailers have this diamond
Prices start from HK$14,938 HKDSave up to HK$20,636 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$14,938 HKD