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Marquise|Natural|GIA

0.31ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 7552847151

Certificate GIA 7552847151

Diamond specifications and retailer prices

From £152 GBP
SGD 275 SGD
As of November 3, 2026
Save £66 GBP (30%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £217 GBP 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 7552847151. Listed at 3 retailers as of November 3, 2026, with prices from £152 to £217, a £66 spread on the same certified stone. 77 Diamonds lists it at £217. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7552847151
Dimensions7.63 × 3.47 × 2.04 mm
L/W Ratio2.20
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
7.63 mm3.47 mm0.31 ctI / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceMedium
CertificateGIA 7552847151
Side View
Table 62.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 58.9%

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 3
Current: £217 GBP|Low: £129 GBP|High: £220 GBP|Avg: £170 GBP|+4.4%
77 Diamonds
Retailer 2
Retailer 3
November 3, 2026
Retailer 2£152 GBP
Retailer 3£152 GBP
77 Diamonds£217 GBP

39 data points across 3 retailers

3 retailers£152 GBP to £217 GBP

B+
Cheapest Retailer
-
£152 GBP
SGD 275 SGD
B+
Retailer 2
-
£152 GBP
$204 USD
View
Final sale: no returns
Most Expensive
B+
77 Diamonds
MQCPSRUDXMUC · Nov 3
£217 GBP
View
2 more retailers have this diamond
Prices start from £152 GBPSave up to £66 GBP

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
£152 GBP