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Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 2566506606

Certificate GIA 2566506606

Diamond specifications and retailer prices

From HK$71,438 HKD
SGD 12,304 SGD
As of November 2, 2026
Save HK$56,610 HKD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$128,048 HKD at With Clarity · As of November 2, 2026
View at With Clarity

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise 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 2566506606. Listed at 14 retailers as of November 2, 2026, with prices from HK$71,438 to HK$128,048, a HK$56,610 spread on the same certified stone. With Clarity lists it at HK$128,048. 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
SymmetryExcellent
FluorescenceNone
Crown angle36.79°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 2566506606
Dimensions11.36 × 5.97 × 3.79 mm
L/W Ratio1.90
Culet sizeNone
Top View
11.36 mm5.97 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566506606
Side View
Table 57.0%Crown 36.79°Girdle: MED-THKPavilion 40.2°Culet: NDepth 63.5%

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 2
Current: HK$91,282 HKD|Low: HK$71,438 HKD|High: HK$128,048 HKD|Avg: HK$89,306 HKD|+0.4%
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
With Clarity
November 2, 2026
Retailer 2HK$71,438 HKD
Retailer 12HK$74,993 HKD
Retailer 8HK$76,617 HKD
Retailer 3HK$76,947 HKD
Retailer 4HK$77,545 HKD
Retailer 11HK$78,979 HKD
Retailer 6HK$79,081 HKD
Retailer 5HK$91,131 HKD
Retailer 1HK$91,282 HKD
Retailer 10HK$92,011 HKD
Retailer 9HK$93,718 HKD
Retailer 7HK$105,318 HKD
Retailer 13HK$112,286 HKD
With ClarityHK$128,048 HKD

23 data points across 14 retailers

14 retailersHK$71,438 HKD to HK$128,048 HKD

B+
Cheapest Retailer
-
HK$71,438 HKD
SGD 12,304 SGD
B+
Retailer 2
-
HK$74,993 HKD
$9,558 USD
View
B+
Retailer 3
-
HK$76,617 HKD
$9,765 USD
View
B+
Retailer 4
-
HK$76,947 HKD
$9,807 USD
View
B+
Retailer 5
-
HK$77,545 HKD
$9,883 USD
View
Retailer 6
-
HK$78,979 HKD
$10,066 USD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
HK$79,081 HKD
£7,936 GBP
View
B
Retailer 8
-
HK$91,131 HKD
$11,615 USD
View
B
Retailer 9
-
HK$91,282 HKD
€11,080 EUR
View
B
Retailer 10
-
HK$92,011 HKD
$11,727 USD
View
Retailer 11
-
HK$93,718 HKD
$11,945 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
HK$105,318 HKD
$13,423 USD
View
B
Retailer 13
-
HK$112,286 HKD
$14,311 USD
View
Most Expensive
B
With Clarity
2566506606 · Nov 2
HK$128,048 HKD
$16,320 USD
View
13 more retailers have this diamond
Prices start from HK$71,438 HKDSave up to HK$56,610 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.

B+
1.50ct Marquise
HK$71,438 HKD