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Marquise|Natural|GIA

0.31ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 1555942948

Certificate GIA 1555942948

Diamond specifications and retailer prices

From $222 USD
SGD 300 SGD
As of November 2, 2026
Save $103 USD (32%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $325 USD 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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1555942948. Listed at 3 retailers as of November 2, 2026, with prices from $222 to $325, a $103 spread on the same certified stone. 77 Diamonds lists it at $325. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555942948
Dimensions6.65 × 3.53 × 2.22 mm
L/W Ratio1.88
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
6.65 mm3.53 mm0.31 ctI / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1555942948
Side View
Table 63.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $325 USD|Low: $222 USD|High: $325 USD|Avg: $288 USD|+4.5%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$222 USD
Retailer 2$275 USD
77 Diamonds$325 USD

36 data points across 3 retailers

3 retailers$222 USD to $325 USD

B+
Cheapest Retailer
-
$222 USD
SGD 300 SGD
B+
Retailer 2
-
$275 USD
View
Most Expensive
B
77 Diamonds
MQCPQWM2V6BR · Nov 2
$325 USD
£256 GBP
View
2 more retailers have this diamond
Prices start from $222 USDSave up to $103 USD

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
$222 USD