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Marquise|Natural|GIA

0.30ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 6555755607

Certificate GIA 6555755607

Diamond specifications and retailer prices

From £140 GBP
₹17,847 INR
As of November 2, 2026
Save £318 GBP (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £458 GBP at MOH London · As of November 2, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555755607. Listed at 8 retailers as of November 2, 2026, with prices from £140 to £458, a £318 spread on the same certified stone. MOH London lists it at £458. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555755607
Dimensions6.86 × 3.64 × 2.04 mm
L/W Ratio1.88
Girdle conditionSlightly Thick to Thick
Key to symbols
Crystal, Feather, Cloud
Top View
6.86 mm3.64 mm0.30 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555755607
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 56.2%

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: £458 GBP|Low: £139 GBP|High: £556 GBP|Avg: £292 GBP|-15.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2£140 GBP
Retailer 4£172 GBP
Retailer 5£212 GBP
Retailer 3£340 GBP
MOH London£458 GBP

45 data points across 5 retailers

8 retailers£140 GBP to £458 GBP

A
Cheapest Retailer
-
£140 GBP
₹17,847 INR
A
Retailer 2
-
£172 GBP
HK$1,800 HKD
View
B+
Retailer 3
-
£212 GBP
SGD 384 SGD
View
Retailer 4
-
£239 GBP
$321 USD
View
Price last confirmed 26 days ago
Retailer 5
-
£246 GBP
$330 USD
View
Price last confirmed 32 days ago
B
Retailer 6
-
£340 GBP
View
Most Expensive
B
MOH London
400250414 · Nov 2
£458 GBP
View
6 more retailers have this diamond
Prices start from £140 GBPSave up to £318 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
£140 GBP