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Marquise|Natural|GIA

1.80ct M SI2 Marquise Natural Diamond

M/SI2 • GIA 1545868712

Certificate GIA 1545868712

Diamond specifications and retailer prices

From HK$40,378 HKD
As of November 6, 2026
Save HK$2,986 HKD (7%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$43,364 HKD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 1.8ct natural marquise diamond

This 1.8ct natural marquise sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included) and certified by GIA 1545868712. Listed at 2 retailers as of November 6, 2026, with a relatively tight 7% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.80
Carat
M
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545868712
Dimensions12.26 × 6.22 × 3.84 mm
L/W Ratio1.97
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
12.26 mm6.22 mm1.80 ctM / SI2
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545868712
Side View
Table 56.0%CrownGirdle: MED-XTKPavilionCulet: NoneDepth 61.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$40,378 HKD|Low: HK$24,649 HKD|High: HK$47,894 HKD|Avg: HK$38,833 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
The Diamond Guys
October 15, 2026
Retailer 2HK$24,649 HKD
Retailer 3HK$32,752 HKD
Retailer 1HK$40,378 HKD
The Diamond GuysHK$43,364 HKD
Retailer 4HK$45,786 HKD
Retailer 5HK$46,703 HKD

78 data points across 6 retailers

2 retailersHK$40,378 HKD to HK$43,364 HKD

B
Cheapest Retailer
-
HK$40,378 HKD
Most Expensive
C
The Diamond Guys
1992900036 · Nov 6
HK$43,364 HKD
$5,533 USD
View
1 more retailer has this diamond
Prices start from HK$40,378 HKDSave up to HK$2,986 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
1.80ct Marquise
HK$40,378 HKD