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Marquise|Natural|GIA

1.00ct M SI1 Marquise Natural Diamond

VG • M/SI1 • GIA 6551617543

Certificate GIA 6551617543

Diamond specifications and retailer prices

From $833 SGD
As of November 6, 2026
Save $779 SGD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,612 SGD at Yorxs · As of November 3, 2026
View at Yorxs

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551617543. Listed at 9 retailers as of November 3, 2026, with prices from $833 to $1,612, a $779 spread on the same certified stone. Yorxs lists it at $1,612. 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

1.00
Carat
M
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551617543
Dimensions9.29 × 5.14 × 3.30 mm
L/W Ratio1.81
Top View
9.29 mm5.14 mm1.00 ctM / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6551617543
Side View
Table 70.0%CrownGirdlePavilionCuletDepth 64.2%

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 6
Current: $1,095 SGD|Low: $833 SGD|High: $1,933 SGD|Avg: $1,321 SGD|-10.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
November 6, 2026
Retailer 6$833 SGD
Retailer 1$1,095 SGD
Retailer 5$1,129 SGD
Retailer 8$1,184 SGD
Retailer 2$1,284 SGD
Retailer 7$1,285 SGD
Retailer 3$1,322 SGD
Retailer 4$1,359 SGD
Yorxs$1,612 SGD

35 data points across 9 retailers

9 retailers$833 SGD to $1,612 SGD

B+
Cheapest Retailer
-
$833 SGD
B+
Retailer 2
-
$1,095 SGD
View
B+
Retailer 3
-
$1,129 SGD
View
B+
Retailer 4
-
$1,284 SGD
View
B+
Retailer 5
-
$1,285 SGD
View
B+
Retailer 6
-
$1,322 SGD
View
B+
Retailer 7
-
$1,359 SGD
View
Retailer 8
-
$1,566 SGD
View
Price last confirmed 60 days ago
Most Expensive
B+
Yorxs
85E9AFC87 · Nov 3
$1,612 SGD
€1,202 EUR
View
8 more retailers have this diamond
Prices start from $833 SGDSave up to $779 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+
1.00ct Marquise
$833 SGD