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Marquise|Natural|GIA

0.30ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6562658745

Certificate GIA 6562658745

Diamond specifications and retailer prices

From £204 GBP
₹26,106 INR
As of November 2, 2026
Save £311 GBP (60%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £653 GBP at MOH London · As of October 26, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562658745. Listed at 10 retailers as of November 2, 2026, with a 152% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562658745
Dimensions7.79 × 3.40 × 2.09 mm
L/W Ratio2.29
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
7.79 mm3.40 mm0.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562658745
Side View
Table 62.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 61.4%

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 2
Current: £653 GBP|Low: £204 GBP|High: £653 GBP|Avg: £365 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2£204 GBP
Retailer 8£238 GBP
Retailer 5£257 GBP
Retailer 9£299 GBP
Retailer 3£368 GBP
Retailer 6£387 GBP
Retailer 7£393 GBP
Retailer 4£516 GBP
MOH London£653 GBP

12 data points across 9 retailers

10 retailers£204 GBP to £516 GBP

A
Cheapest Retailer
-
£204 GBP
₹26,106 INR
A
Retailer 2
-
£238 GBP
HK$2,500 HKD
View
B+
Retailer 3
-
£257 GBP
$345 USD
View
B+
Retailer 4
-
£299 GBP
SGD 543 SGD
View
B+
Retailer 5
-
£303 GBP
A$626 AUD
View
B
Retailer 6
-
£368 GBP
View
B
Retailer 7
-
£387 GBP
View
B
Retailer 8
-
£393 GBP
$527 USD
View
B
Retailer 9
-
£516 GBP
€659 EUR
View
Most Expensive
MOH London
539FBC853 · Oct 26
£653 GBP
View
Price under review
9 more retailers have this diamond
Prices start from £204 GBPSave up to £311 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
£204 GBP