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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 $284 SGD
As of November 2, 2026
Save $128 SGD (31%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $412 SGD at 77 Diamonds · As of November 3, 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 $284 to $412, a $128 spread on the same certified stone. 77 Diamonds lists it at $412. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $412 SGD|Low: $284 SGD|High: $416 SGD|Avg: $366 SGD|+5.1%
77 Diamonds
Retailer 2
Retailer 3
November 3, 2026
Retailer 3$284 SGD
Retailer 2$352 SGD
77 Diamonds$412 SGD

36 data points across 3 retailers

3 retailers$284 SGD to $412 SGD

B+
Cheapest Retailer
-
$284 SGD
B+
Retailer 2
-
$352 SGD
$275 USD
View
Most Expensive
B
77 Diamonds
MQCPQWM2V6BR · Nov 3
$412 SGD
£254 GBP
View
2 more retailers have this diamond
Prices start from $284 SGDSave up to $128 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+
0.31ct Marquise
$284 SGD