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Marquise|Natural|GIA

0.31ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5563054546

Certificate GIA 5563054546

Diamond specifications and retailer prices

From $621 CAD
£350 GBP
As of November 1, 2026
4 retailers carry this diamond
Most expensive: $621 CAD at 77 Diamonds
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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563054546. Listed at 4 retailers as of November 1, 2026. 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.17°
Pavilion angle40.09°
OriginNatural
Grading LabGIA
CertificateGIA 5563054546
Dimensions6.89 × 3.64 × 2.17 mm
L/W Ratio1.89
Culet sizeNone
Top View
6.89 mm3.64 mm0.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5563054546
Side View
Table 60.0%Crown 36.17°Girdle: MED-THKPavilion 40.09°Culet: NoneDepth 59.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: $621 CAD|Low: $227 CAD|High: $645 CAD|Avg: $445 CAD|+36.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10$227 CAD
Retailer 4$335 CAD
Retailer 9$351 CAD
Retailer 7$429 CAD
Retailer 2$448 CAD
Retailer 5$455 CAD
Retailer 6$479 CAD
Retailer 8$522 CAD
77 Diamonds$621 CAD
Retailer 3$645 CAD

26 data points across 10 retailers

4 retailers

Retailer 1
-
$335 CAD
$240 USD
Price last confirmed 31 days ago
Retailer 2
-
$351 CAD
SGD 340 SGD
View
Price last confirmed 32 days ago
Retailer 3
-
$522 CAD
$374 USD
View
Price last confirmed 32 days ago
Most Expensive
B
77 Diamonds
MQZFGQCMU8G · Nov 1
$621 CAD
£350 GBP
View
3 more retailers have this diamond

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
$621 CAD