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Marquise|Natural|GIA

1.50ct I SI2 Marquise Natural Diamond

ID • I/SI2 • GIA 1555664423

Certificate GIA 1555664423

Diamond specifications and retailer prices

From HK$48,803 HKD
$6,220 USD
As of November 1, 2026
Save HK$42,104 HKD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$90,907 HKD at MOH London · As of November 2, 2026
View at MOH London

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555664423. Listed at 14 retailers as of November 1, 2026, with prices from HK$48,803 to HK$90,907, a HK$42,104 spread on the same certified stone. MOH London lists it at HK$90,907. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555664423
Dimensions11.46 × 5.97 × 3.63 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Natural
Top View
11.46 mm5.97 mm1.50 ctI / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555664423
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NDepth 60.8%

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$90,907 HKD|Low: HK$53,534 HKD|High: HK$92,003 HKD|Avg: HK$64,463 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7HK$53,534 HKD
Retailer 12HK$54,373 HKD
Retailer 10HK$56,547 HKD
Retailer 6HK$60,901 HKD
Retailer 8HK$61,655 HKD
Retailer 5HK$61,662 HKD
Retailer 11HK$63,075 HKD
Retailer 4HK$65,829 HKD
Retailer 9HK$66,510 HKD
Retailer 3HK$68,026 HKD
Retailer 2HK$68,115 HKD
MOH LondonHK$90,907 HKD

40 data points across 12 retailers

14 retailersHK$48,803 HKD to HK$90,907 HKD

A
Cheapest Retailer
-
HK$48,803 HKD
$6,220 USD
B+
Retailer 2
-
HK$53,534 HKD
$6,823 USD
View
B+
Retailer 3
-
HK$54,373 HKD
CA$9,625 CAD
View
B+
Retailer 4
-
HK$56,547 HKD
$7,207 USD
View
B+
Retailer 5
-
HK$60,901 HKD
$7,762 USD
View
B+
Retailer 6
-
HK$61,655 HKD
$7,858 USD
View
B+
Retailer 7
-
HK$61,662 HKD
£6,188 GBP
View
B+
Retailer 8
-
HK$63,075 HKD
$8,039 USD
View
B
Retailer 9
-
HK$65,829 HKD
$8,390 USD
View
B
Retailer 10
-
HK$65,829 HKD
$8,390 USD
View
Retailer 11
-
HK$66,510 HKD
$8,477 USD
View
Price last confirmed 7 days ago
B
Retailer 12
-
HK$68,026 HKD
$8,670 USD
View
B
Retailer 13
-
HK$68,115 HKD
€8,268 EUR
View
Most Expensive
B
MOH London
D2AC85338 · Nov 2
HK$90,907 HKD
£9,123 GBP
View
13 more retailers have this diamond
Prices start from HK$48,803 HKDSave up to HK$42,104 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$48,803 HKD