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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 $6,603 SGD
As of November 6, 2026
Save $488 SGD (7%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $7,091 SGD 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
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Price History

Last verified: Nov 6
Current: $6,603 SGD|Low: $4,031 SGD|High: $7,832 SGD|Avg: $6,350 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
The Diamond Guys
October 15, 2026
Retailer 2$4,031 SGD
Retailer 3$5,356 SGD
Retailer 1$6,603 SGD
The Diamond Guys$7,091 SGD
Retailer 4$7,487 SGD
Retailer 5$7,637 SGD

78 data points across 6 retailers

2 retailers$6,603 SGD to $7,091 SGD

B
Cheapest Retailer
-
$6,603 SGD
Most Expensive
C
The Diamond Guys
1992900036 · Nov 6
$7,091 SGD
$5,533 USD
View
1 more retailer has this diamond
Prices start from $6,603 SGDSave up to $488 SGD

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
$6,603 SGD