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Cushion|Natural|GIA

3.00ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6445673307

Certificate GIA 6445673307

Diamond specifications and retailer prices

From £25,736 GBP
$34,484 USD
As of October 28, 2026
Save £6,693 GBP (21%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £32,429 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 3ct natural cushion diamond

This 3ct natural cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6445673307. Listed at 5 retailers as of October 28, 2026, with prices from £25,736 to £32,429, a £6,693 spread on the same certified stone. 77 Diamonds lists it at £32,429. 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

3.00
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.64°
Pavilion angle37.48°
OriginNatural
Grading LabGIA
CertificateGIA 6445673307
Dimensions9.42 × 7.62 × 5.32 mm
L/W Ratio1.24
Top View
9.42 mm7.62 mm3.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6445673307
Side View
Table 62.0%Crown 41.64°Girdle: MED-THKPavilion 37.48°Culet: NoneDepth 69.8%

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: Oct 28
Current: £32,429 GBP|Low: £25,501 GBP|High: £32,711 GBP|Avg: £27,747 GBP|+0.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3£25,736 GBP
Retailer 2£25,770 GBP
Retailer 5£26,978 GBP
Retailer 6£27,231 GBP
Retailer 4£28,354 GBP
77 Diamonds£32,429 GBP

35 data points across 6 retailers

5 retailers£25,736 GBP to £32,429 GBP

B+
Cheapest Retailer
-
£25,736 GBP
$34,484 USD
B+
Retailer 2
-
£25,770 GBP
$34,529 USD
View
B+
Retailer 3
-
£26,978 GBP
$36,147 USD
View
B
Retailer 4
-
£27,231 GBP
$36,486 USD
View
Most Expensive
B
77 Diamonds
CUSZZZG2UGFD · Nov 1
£32,429 GBP
View
4 more retailers have this diamond
Prices start from £25,736 GBPSave up to £6,693 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+
3.00ct Cushion
£25,736 GBP