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Marquise|Natural|GIA

0.31ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 1559830615

Certificate GIA 1559830615

Diamond specifications and retailer prices

From $313 USD
£246 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $313 USD at 77 Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at 77 Diamonds

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded J 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 1559830615. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559830615
Dimensions6.57 × 3.50 × 2.24 mm
L/W Ratio1.88
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Cloud
Top View
6.57 mm3.50 mm0.31 ctJ / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1559830615
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCuletDepth 63.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $313 USD|Low: $289 USD|High: $313 USD|Avg: $299 USD|+3.9%
November 2, 2026
77 Diamonds$313 USD

35 data points across 1 retailer

1 retailer

B
77 Diamonds
MQCPXQC6CTKA · Nov 2
$313 USD
£246 GBP
View

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
$313 USD