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Marquise|Natural|GIA

0.30ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 5556848684

Certificate GIA 5556848684

Diamond specifications and retailer prices

From £154 GBP
SGD 279 SGD
As of November 2, 2026
Save £68 GBP (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £221 GBP at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

About this 0.3ct natural marquise diamond

This 0.3ct 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 5556848684. Listed at 2 retailers as of November 2, 2026, with prices from £154 to £221, a £68 spread on the same certified stone. 77 Diamonds lists it at £221. 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

0.30
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556848684
Dimensions6.19 × 3.53 × 2.32 mm
L/W Ratio1.75
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
6.19 mm3.53 mm0.30 ctJ / SI1
OriginNatural
CutGood
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556848684
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.9%

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: £221 GBP|Low: £154 GBP|High: £224 GBP|Avg: £193 GBP|+3.2%
77 Diamonds
Retailer 2
November 3, 2026
Retailer 2£154 GBP
77 Diamonds£221 GBP

39 data points across 2 retailers

2 retailers£154 GBP to £221 GBP

B+
Cheapest Retailer
-
£154 GBP
SGD 279 SGD
Most Expensive
B
77 Diamonds
MQCPSFENNRTS · Nov 3
£221 GBP
View
1 more retailer has this diamond
Prices start from £154 GBPSave up to £68 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+
0.30ct Marquise
£154 GBP