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Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2554551416

Certificate GIA 2554551416

Diamond specifications and retailer prices

From HK$74,255 HKD
$9,464 USD
As of November 2, 2026
Save HK$55,642 HKD (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$129,898 HKD at MOH London · As of November 1, 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 G 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 2554551416. Listed at 15 retailers as of November 1, 2026, with prices from HK$74,255 to HK$129,898, a HK$55,642 spread on the same certified stone. MOH London lists it at HK$129,898. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554551416
Dimensions11.26 × 5.93 × 3.75 mm
L/W Ratio1.90
Key to symbols
Feather, Crystal, Cloud, Needle, Natural
Top View
11.26 mm5.93 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554551416
Side View
Table 59.0%CrownGirdle: STK-STKPavilionCulet: NoneDepth 63.2%

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$129,898 HKD|Low: HK$73,290 HKD|High: HK$131,462 HKD|Avg: HK$92,224 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
November 2, 2026
Retailer 7HK$74,255 HKD
Retailer 4HK$77,888 HKD
Retailer 10HK$77,927 HKD
Retailer 9HK$80,299 HKD
Retailer 5HK$83,169 HKD
Retailer 2HK$90,026 HKD
Retailer 8HK$97,064 HKD
Retailer 6HK$98,076 HKD
Retailer 11HK$98,076 HKD
Retailer 3HK$101,372 HKD
MOH LondonHK$129,898 HKD

40 data points across 11 retailers

15 retailersHK$74,255 HKD to HK$129,898 HKD

B+
Cheapest Retailer
-
HK$74,255 HKD
$9,464 USD
B+
Retailer 2
-
HK$77,888 HKD
$9,927 USD
View
B+
Retailer 3
-
HK$77,927 HKD
$9,932 USD
View
B+
Retailer 4
-
HK$78,887 HKD
A$15,468 AUD
View
B+
Retailer 5
-
HK$80,299 HKD
CA$14,214 CAD
View
B
Retailer 6
-
HK$83,169 HKD
$10,600 USD
View
Final sale: no returns
B+
Retailer 7
-
HK$90,026 HKD
£9,035 GBP
View
Retailer 8
-
HK$90,105 HKD
$11,484 USD
View
Price last confirmed 43 days ago
B
Retailer 9
-
HK$97,064 HKD
$12,371 USD
View
B
Retailer 10
-
HK$98,076 HKD
$12,500 USD
View
B
Retailer 11
-
HK$98,076 HKD
$12,500 USD
View
B
Retailer 12
-
HK$101,372 HKD
$12,920 USD
View
Retailer 13
-
HK$103,969 HKD
$13,251 USD
View
Price last confirmed 44 days ago
Retailer 14
-
HK$103,969 HKD
$13,251 USD
View
Price last confirmed 48 days ago
Most Expensive
B
MOH London
C3DA0E18E · Nov 1
HK$129,898 HKD
£13,036 GBP
View
14 more retailers have this diamond
Prices start from HK$74,255 HKDSave up to HK$55,642 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$74,255 HKD