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Cushion|Natural|GIA

3.05ct F SI1 Cushion Natural Diamond

F/SI1 • GIA 6204000621

Certificate GIA 6204000621

Diamond specifications and retailer prices

From £17,774 GBP
As of November 6, 2026
Save £2,680 GBP (13%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £20,453 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 3.05ct natural cushion diamond

This 3.05ct natural cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 6204000621. Listed at 3 retailers as of November 6, 2026, with prices from £17,774 to £20,453, a £2,680 spread on the same certified stone. Wholesale Diamonds Direct lists it at £20,453. 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

3.05
Carat
F
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6204000621
Dimensions8.95 × 8.09 × 5.26 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Extra Facet
Top View
8.95 mm8.09 mm3.05 ctF / SI1
OriginNatural
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6204000621
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCuletDepth 65.0%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £17,774 GBP|Low: £17,774 GBP|High: £20,453 GBP|Avg: £18,667 GBP
Retailer 1
Retailer 2
Wholesale Diamonds Direct
November 6, 2026
Retailer 1£17,774 GBP
Retailer 2£17,774 GBP
Wholesale Diamonds Direct£20,453 GBP

1 data point across 3 retailers

3 retailers£17,774 GBP to £20,453 GBP

B+
Cheapest Retailer
-
£17,774 GBP
B+
Retailer 2
-
£17,774 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
690602274 · Nov 6
£20,453 GBP
$27,377 USD
View
2 more retailers have this diamond
Prices start from £17,774 GBPSave up to £2,680 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+
3.05ct Cushion
£17,774 GBP