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Marquise|Natural|GIA

0.31ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 1559845214

Certificate GIA 1559845214

Diamond specifications and retailer prices

From $334 CAD
SGD 323 SGD
As of November 2, 2026
Save $97 CAD (23%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $431 CAD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1559845214. Listed at 3 retailers as of November 2, 2026, with prices from $334 to $431, a $97 spread on the same certified stone. 77 Diamonds lists it at $431. 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

0.31
Carat
I
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559845214
Dimensions6.54 × 3.49 × 2.34 mm
L/W Ratio1.87
Culet sizeNone
Key to symbols
Cloud, Feather
Top View
6.54 mm3.49 mm0.31 ctI / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 1559845214
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.1%

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: $431 CAD|Low: $334 CAD|High: $431 CAD|Avg: $397 CAD|+2.6%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$334 CAD
Retailer 2$391 CAD
77 Diamonds$431 CAD

36 data points across 3 retailers

3 retailers$334 CAD to $431 CAD

B+
Cheapest Retailer
-
$334 CAD
SGD 323 SGD
B+
Retailer 2
-
$391 CAD
$280 USD
View
Most Expensive
B
77 Diamonds
MQCPAR8GZMFN · Nov 2
$431 CAD
£243 GBP
View
2 more retailers have this diamond
Prices start from $334 CADSave up to $97 CAD

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+
0.31ct Marquise
$334 CAD