Cushion|Lab Grown|IGI

3.05ct E VS1 Cushion Lab Grown Diamond

ID • E/VS1 • IGI LG821690804

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821690804

Diamond specifications and retailer prices

From £743 GBP
$995 USD
As of October 29, 2026
Save £2,285 GBP (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,896 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821690804 or 821690804. Listed at 17 retailers as of October 29, 2026, with a 308% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.05
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821690804
Dimensions9.94 × 7.62 × 4.72 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.94 mm7.62 mm3.05 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821690804
Side View
Table 64.0%Crown 34.2°Girdle: THN-MEDPavilion 32.9°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £5,896 GBP|Low: £743 GBP|High: £5,896 GBP|Avg: £2,028 GBP
Do Amore Diamonds
Retailer 2
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Retailer 12
Retailer 13
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Retailer 18
October 30, 2026
Retailer 3£743 GBP
Retailer 5£770 GBP
Retailer 8£819 GBP
Retailer 16£821 GBP
Retailer 6£1,031 GBP
Retailer 15£1,042 GBP
Retailer 4£1,237 GBP
Retailer 2£1,312 GBP
Retailer 13£1,919 GBP
Retailer 14£1,948 GBP
Retailer 11£1,974 GBP
Retailer 7£2,343 GBP
Retailer 17£2,409 GBP
Retailer 18£2,510 GBP
Retailer 12£2,898 GBP
Retailer 9£3,027 GBP
Retailer 10£4,045 GBP
Do Amore Diamonds£5,896 GBP

43 data points across 18 retailers

17 retailers£743 GBP to £3,027 GBP

A
Cheapest Retailer
-
£743 GBP
$995 USD
Final sale: no returns
Retailer 2
-
£770 GBP
$1,032 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
£819 GBP
$1,097 USD
View
A
Retailer 4
-
£821 GBP
$1,100 USD
View
A
Retailer 5
-
£1,031 GBP
$1,381 USD
View
Retailer 6
-
£1,042 GBP
View
Price last confirmed 13 days ago
B+
Retailer 7
-
£1,237 GBP
$1,657 USD
View
B+
Retailer 8
-
£1,312 GBP
View
Retailer 9
-
£1,919 GBP
A$3,955 AUD
View
Price last confirmed 9 days ago
Retailer 10
-
£1,948 GBP
$2,610 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
£1,974 GBP
ZAR 42,732 ZAR
View
B
Retailer 12
-
£2,343 GBP
View
B
Retailer 13
-
£2,409 GBP
$3,228 USD
View
B
Retailer 14
-
£2,510 GBP
$3,363 USD
View
B
Retailer 15
-
£2,898 GBP
View
B
Retailer 16
-
£3,027 GBP
$4,056 USD
View
Most Expensive
Do Amore Diamonds
27-6B7752BF0 · Oct 30
£5,896 GBP
$7,900 USD
View
Price under review
16 more retailers have this diamond
Prices start from £743 GBPSave up to £2,285 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
£743 GBP