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Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1553693221

Certificate GIA 1553693221

Diamond specifications and retailer prices

From HK$50,874 HKD
$6,484 USD
As of October 28, 2026
Save HK$19,192 HKD (27%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$70,066 HKD at Jared · As of October 28, 2026
View at Jared

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise 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 1553693221. Listed at 11 retailers as of October 28, 2026, with prices from HK$50,874 to HK$70,066, a HK$19,192 spread on the same certified stone. Jared lists it at HK$70,066. 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
FluorescenceMedium
Crown angle38.42°
Pavilion angle38.6°
OriginNatural
Grading LabGIA
CertificateGIA 1553693221
Dimensions11.45 × 5.98 × 3.69 mm
L/W Ratio1.91
Culet sizeNone
Top View
11.45 mm5.98 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1553693221
Side View
Table 57.0%Crown 38.42°Girdle: THN-THKPavilion 38.6°Culet: NoneDepth 61.7%

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: Oct 28
Current: HK$70,066 HKD|Low: HK$45,253 HKD|High: HK$87,170 HKD|Avg: HK$61,254 HKD
Jared
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
October 29, 2026
Retailer 3HK$45,706 HKD
Retailer 7HK$50,874 HKD
Retailer 10HK$51,196 HKD
Retailer 13HK$54,125 HKD
Retailer 5HK$54,256 HKD
Retailer 14HK$57,040 HKD
Retailer 11HK$61,548 HKD
Retailer 4HK$63,946 HKD
Retailer 8HK$67,790 HKD
Retailer 9HK$67,790 HKD
Retailer 12HK$68,676 HKD
Retailer 2HK$69,752 HKD
JaredHK$70,066 HKD
Retailer 6HK$87,170 HKD

26 data points across 14 retailers

11 retailersHK$50,874 HKD to HK$70,066 HKD

A
Cheapest Retailer
-
HK$50,874 HKD
$6,484 USD
A
Retailer 2
-
HK$51,196 HKD
$6,525 USD
View
B+
Retailer 3
-
HK$54,125 HKD
SGD 9,322 SGD
View
Retailer 4
-
HK$54,256 HKD
$6,915 USD
View
Price last confirmed 28 days ago
B+
Retailer 5
-
HK$61,548 HKD
$7,844 USD
View
B+
Retailer 6
-
HK$62,118 HKD
$7,917 USD
View
B
Retailer 7
-
HK$67,790 HKD
$8,640 USD
View
B
Retailer 8
-
HK$67,790 HKD
$8,640 USD
View
Retailer 9
-
HK$68,676 HKD
$8,753 USD
View
Price last confirmed 21 days ago
B
Retailer 10
-
HK$69,752 HKD
$8,890 USD
View
Most Expensive
B
Jared
160131634 · Oct 28
HK$70,066 HKD
$8,930 USD
View
10 more retailers have this diamond
Prices start from HK$50,874 HKDSave up to HK$19,192 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 Marquise
HK$50,874 HKD