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Cushion|Natural|GIA

3.05ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 1435547710

Certificate GIA 1435547710

Diamond specifications and retailer prices

From £21,890 GBP
As of November 6, 2026
Save £4,726 GBP (18%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £26,617 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 3.05ct natural cushion diamond

This 3.05ct natural cushion sits in the three to five carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1435547710. Listed at 4 retailers as of November 5, 2026, with prices from £21,890 to £26,617, a £4,726 spread on the same certified stone. Blue Nile lists it at £26,617. 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

3.05
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1435547710
Dimensions8.89 × 7.65 × 5.13 mm
L/W Ratio1.16
Top View
8.89 mm7.65 mm3.05 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1435547710
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £26,617 GBP|Low: £21,890 GBP|High: £26,867 GBP|Avg: £25,112 GBP
Blue Nile
Retailer 2
Retailer 3
November 6, 2026
Retailer 2£21,890 GBP
Retailer 3£26,336 GBP
Blue Nile£26,617 GBP

46 data points across 3 retailers

4 retailers£21,890 GBP to £26,617 GBP

A
Cheapest Retailer
-
£21,890 GBP
A
Retailer 2
-
£23,200 GBP
View
A
Retailer 3
-
£26,336 GBP
View
Most Expensive
A
Blue Nile
14055783 · Nov 5
£26,617 GBP
$35,626 USD
View
3 more retailers have this diamond
Prices start from £21,890 GBPSave up to £4,726 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
3.05ct Cushion
£21,890 GBP