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Marquise|Natural|GIA

0.33ct F SI1 Marquise Natural Diamond

GD • F/SI1 • GIA 6551911353

Certificate GIA 6551911353

Diamond specifications and retailer prices

From £245 GBP
SGD 444 SGD
As of November 2, 2026
Save £70 GBP (22%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £315 GBP at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

About this 0.33ct natural marquise diamond

This 0.33ct natural marquise sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551911353. Listed at 3 retailers as of November 2, 2026, with prices from £245 to £315, a £70 spread on the same certified stone. 77 Diamonds lists it at £315. 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

0.33
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551911353
Dimensions6.54 × 3.54 × 2.36 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather
Top View
6.54 mm3.54 mm0.33 ctF / SI1
OriginNatural
CutGood
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551911353
Side View
Table 62.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 66.8%

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: Nov 2
Current: £315 GBP|Low: £238 GBP|High: £315 GBP|Avg: £275 GBP|+3.3%
77 Diamonds
Retailer 2
Retailer 3
November 3, 2026
Retailer 3£238 GBP
Retailer 2£245 GBP
77 Diamonds£315 GBP

39 data points across 3 retailers

3 retailers£245 GBP to £315 GBP

Retailer 1
-
£238 GBP
$320 USD
Price last confirmed 19 days ago
B+
Retailer 2
-
£245 GBP
SGD 444 SGD
View
Most Expensive
B
77 Diamonds
MQCPAXWWZXTS · Nov 3
£315 GBP
View
2 more retailers have this diamond
Prices start from £245 GBPSave up to £70 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+
0.33ct Marquise
£245 GBP