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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6555666190

Certificate GIA 6555666190

Diamond specifications and retailer prices

From HK$64,377 HKD
$8,205 USD
As of November 1, 2026
Save HK$24,284 HKD (27%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$88,661 HKD at Jared · As of November 2, 2026
View at Jared

About this 1.51ct natural marquise diamond

This 1.51ct 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 6555666190. Listed at 9 retailers as of November 1, 2026, with prices from HK$64,377 to HK$88,661, a HK$24,284 spread on the same certified stone. Jared lists it at HK$88,661. 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

1.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555666190
Dimensions11.41 × 5.94 × 3.77 mm
L/W Ratio1.92
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Cavity, Needle
Top View
11.41 mm5.94 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555666190
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.4%

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 1
Current: HK$88,661 HKD|Low: HK$67,006 HKD|High: HK$92,819 HKD|Avg: HK$80,825 HKD|-4.5%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4HK$71,183 HKD
Retailer 5HK$72,192 HKD
Retailer 2HK$76,044 HKD
Retailer 6HK$76,484 HKD
Retailer 8HK$81,105 HKD
Retailer 3HK$85,758 HKD
Retailer 7HK$85,758 HKD
JaredHK$88,661 HKD

16 data points across 8 retailers

9 retailersHK$64,377 HKD to HK$88,661 HKD

A
Cheapest Retailer
-
HK$64,377 HKD
$8,205 USD
B+
Retailer 2
-
HK$71,183 HKD
SGD 12,260 SGD
View
B+
Retailer 3
-
HK$72,192 HKD
$9,201 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$76,044 HKD
£7,631 GBP
View
B+
Retailer 5
-
HK$76,484 HKD
$9,748 USD
View
B+
Retailer 6
-
HK$81,105 HKD
$10,337 USD
View
B
Retailer 7
-
HK$85,758 HKD
$10,930 USD
View
B
Retailer 8
-
HK$85,758 HKD
$10,930 USD
View
Most Expensive
B
Jared
159480438 · Nov 2
HK$88,661 HKD
$11,300 USD
View
8 more retailers have this diamond
Prices start from HK$64,377 HKDSave up to HK$24,284 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
1.51ct Marquise
HK$64,377 HKD