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Cushion|Lab Grown|IGI

3.05ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG459117375

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG459117375

Diamond specifications and retailer prices

From £637 GBP
$853 USD
As of November 2, 2026
Save £5,192 GBP (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £5,829 GBP at Do Amore Diamonds · As of October 31, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG459117375 or 459117375. Listed at 14 retailers as of October 31, 2026, with prices from £637 to £5,829, a £5,192 spread on the same certified stone. Do Amore Diamonds lists it at £5,829. 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
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459117375
Dimensions9.15 × 8.19 × 5.46 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.15 mm8.19 mm3.05 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG459117375
Side View
Table 60.5%Crown 33.9°Girdle: THN-STKPavilion 39.7°Culet: NoneDepth 66.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £5,829 GBP|Low: £637 GBP|High: £5,829 GBP|Avg: £1,916 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 5£637 GBP
Retailer 15£734 GBP
Retailer 10£892 GBP
Retailer 13£966 GBP
Retailer 12£1,030 GBP
Retailer 7£1,083 GBP
Retailer 3£1,222 GBP
Retailer 11£1,358 GBP
Retailer 8£1,951 GBP
Retailer 4£2,320 GBP
Retailer 9£2,325 GBP
Retailer 2£2,849 GBP
Retailer 14£2,955 GBP
Retailer 6£2,992 GBP
Do Amore Diamonds£5,829 GBP

10 data points across 15 retailers

14 retailers£637 GBP to £5,829 GBP

A
Cheapest Retailer
-
£637 GBP
$853 USD
A
Retailer 2
-
£734 GBP
$984 USD
View
Final sale: no returns
A
Retailer 3
-
£892 GBP
$1,195 USD
View
A
Retailer 4
-
£966 GBP
$1,295 USD
View
Retailer 5
-
£1,030 GBP
View
Price last confirmed 16 days ago
B+
Retailer 6
-
£1,222 GBP
$1,637 USD
View
B+
Retailer 7
-
£1,358 GBP
$1,820 USD
View
B+
Retailer 8
-
£1,951 GBP
ZAR 42,233 ZAR
View
B
Retailer 9
-
£2,320 GBP
View
B
Retailer 10
-
£2,325 GBP
CA$4,327 CAD
View
B
Retailer 11
-
£2,849 GBP
View
Retailer 12
-
£2,955 GBP
$3,960 USD
View
Price last confirmed 16 days ago
B
Retailer 13
-
£2,992 GBP
$4,009 USD
View
Most Expensive
B
Do Amore Diamonds
27-761F9FB84 · Oct 31
£5,829 GBP
$7,810 USD
View
13 more retailers have this diamond
Prices start from £637 GBPSave up to £5,192 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
£637 GBP