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Marquise|Natural|GIA

0.30ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 2554550321

Certificate GIA 2554550321

Diamond specifications and retailer prices

From £115 GBP
₹14,625 INR
As of November 1, 2026
Save £266 GBP (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £381 GBP at MOH London · As of November 1, 2026
View at MOH London

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554550321. Listed at 9 retailers as of November 1, 2026, with prices from £115 to £381, a £266 spread on the same certified stone. MOH London lists it at £381. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.30
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554550321
Dimensions6.51 × 3.54 × 2.22 mm
L/W Ratio1.84
Girdle conditionThick to Very Thick
Key to symbols
Crystal
Top View
6.51 mm3.54 mm0.30 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554550321
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £381 GBP|Low: £114 GBP|High: £445 GBP|Avg: £247 GBP|-13.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 2£115 GBP
Retailer 5£143 GBP
Retailer 6£177 GBP
Retailer 4£200 GBP
Retailer 3£355 GBP
MOH London£381 GBP

45 data points across 6 retailers

9 retailers£115 GBP to £381 GBP

A
Cheapest Retailer
-
£115 GBP
₹14,625 INR
A
Retailer 2
-
£143 GBP
HK$1,500 HKD
View
Retailer 3
-
£177 GBP
SGD 321 SGD
View
Price last confirmed 8 days ago
Retailer 4
-
£190 GBP
$255 USD
View
Price last confirmed 25 days ago
Retailer 5
-
£199 GBP
$267 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
£200 GBP
$268 USD
View
B
Retailer 7
-
£355 GBP
View
Most Expensive
B
MOH London
17AE8BCF9 · Nov 1
£381 GBP
View
7 more retailers have this diamond
Prices start from £115 GBPSave up to £266 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.

A
0.30ct Marquise
£115 GBP