CaratHunter
Plans
Cushion|Lab Grown|GIA

4.00ct H SI1 Cushion Lab Grown Diamond

ID • H/SI1 • GIA 5221878299

Shape and cutting style on the report: Cushion modified brilliant

Certificate GIA 5221878299

Diamond specifications and retailer prices

From £2,262 GBP
As of November 6, 2026
Save £5,620 GBP (71%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £7,882 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 4ct lab-grown cushion diamond

This 4ct lab-grown 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 5221878299. Listed at 2 retailers as of November 6, 2026, with prices from £2,262 to £7,882, a £5,620 spread on the same certified stone. Do Amore Diamonds lists it at £7,882. 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

4.00
Carat
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 5221878299
Dimensions10.33 × 8.67 × 5.86 mm
L/W Ratio1.19
Top View
10.33 mm8.67 mm4.00 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5221878299
Side View
Table 55.0%CrownGirdle: STK-THKPavilionCuletDepth 67.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £7,882 GBP|Low: £1,110 GBP|High: £8,696 GBP|Avg: £4,335 GBP|-2.1%
Do Amore Diamonds
Retailer 2
Retailer 3
September 26, 2026
Retailer 3£1,110 GBP
Retailer 2£2,262 GBP
Do Amore Diamonds£7,882 GBP

16 data points across 3 retailers

2 retailers£2,262 GBP to £7,882 GBP

B
Cheapest Retailer
-
£2,262 GBP
Most Expensive
C
Do Amore Diamonds
24-2301-134AAA · Nov 6
£7,882 GBP
$10,550 USD
View
1 more retailer has this diamond
Prices start from £2,262 GBPSave up to £5,620 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
4.00ct Cushion
£2,262 GBP