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Marquise|Natural|GIA

0.30ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 2566562

Certificate GIA 2566562

Diamond specifications and retailer prices

From £194 GBP
SGD 352 SGD
As of October 31, 2026
Save £293 GBP (60%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £487 GBP at Diamond Quarter · As of October 30, 2026
View at Diamond Quarter

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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566562. Listed at 4 retailers as of October 30, 2026, with prices from £194 to £487, a £293 spread on the same certified stone. Diamond Quarter lists it at £487. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566562
Dimensions6.38 × 3.51 mm
L/W Ratio1.82
Top View
6.38 mm3.51 mm0.30 ctH / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 2566562
Side View
Table 59.0%CrownGirdle: STK - VTKPavilionCulet: NDepth 65.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £194 GBP|Low: £194 GBP|High: £269 GBP|Avg: £236 GBP|-0.3%
Retailer 1
Retailer 2
Retailer 3
October 13, 2026
Retailer 1£194 GBP
Retailer 3£244 GBP
Retailer 2£269 GBP

3 data points across 3 retailers

4 retailers£194 GBP to £487 GBP

B+
Cheapest Retailer
-
£194 GBP
SGD 352 SGD
Retailer 2
-
£243 GBP
A$502 AUD
View
Price last confirmed 80 days ago
B
Retailer 3
-
£269 GBP
$361 USD
View
Most Expensive
C
Diamond Quarter
0.3SI2H7587D962N · Oct 30
£487 GBP
View
3 more retailers have this diamond
Prices start from £194 GBPSave up to £293 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
£194 GBP