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Cushion|Lab Grown|IGI

4.05ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG689569118

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG689569118

Diamond specifications and retailer prices

From £1,735 GBP
$2,325 USD
As of October 31, 2026
Save £7,810 GBP (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £9,546 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG689569118 or 689569118. Listed at 19 retailers as of October 31, 2026, with prices from £1,735 to £9,546, a £7,810 spread on the same certified stone. Do Amore Diamonds lists it at £9,546. 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

4.05
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689569118
Dimensions9.22 × 9.22 × 6.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.22 mm9.22 mm4.05 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689569118
Side View
Table 59.0%Crown 36.7°Girdle: STK-THKPavilion 37.5°Culet: NoneDepth 65.1%

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: Oct 31
Current: £9,546 GBP|Low: £1,554 GBP|High: £9,546 GBP|Avg: £3,913 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
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Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 17
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Retailer 19
November 1, 2026
Retailer 17£1,735 GBP
Retailer 7£1,773 GBP
Retailer 16£1,799 GBP
Retailer 5£1,873 GBP
Retailer 9£2,226 GBP
Retailer 13£2,445 GBP
Retailer 4£2,683 GBP
Retailer 14£2,831 GBP
Retailer 10£3,367 GBP
Retailer 18£3,782 GBP
Retailer 12£3,807 GBP
Retailer 19£4,071 GBP
Retailer 6£4,563 GBP
Retailer 3£4,655 GBP
Retailer 15£4,989 GBP
Retailer 2£5,075 GBP
Retailer 11£6,216 GBP
Retailer 8£6,429 GBP
Do Amore Diamonds£9,546 GBP

36 data points across 19 retailers

19 retailers£1,735 GBP to £9,546 GBP

A
Cheapest Retailer
-
£1,735 GBP
$2,325 USD
A
Retailer 2
-
£1,773 GBP
$2,376 USD
View
A
Retailer 3
-
£1,799 GBP
$2,410 USD
View
Final sale: no returns
A
Retailer 4
-
£1,873 GBP
$2,510 USD
View
B+
Retailer 5
-
£2,226 GBP
HK$23,300 HKD
View
B+
Retailer 6
-
£2,445 GBP
View
B+
Retailer 7
-
£2,683 GBP
$3,595 USD
View
B+
Retailer 8
-
£2,831 GBP
€3,613 EUR
View
B+
Retailer 9
-
£3,367 GBP
View
B+
Retailer 10
-
£3,782 GBP
ZAR 81,873 ZAR
View
B
Retailer 11
-
£3,807 GBP
A$7,847 AUD
View
Retailer 12
-
£4,071 GBP
$5,455 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
£4,563 GBP
$6,115 USD
View
B
Retailer 14
-
£4,655 GBP
$6,237 USD
View
B
Retailer 15
-
£4,989 GBP
A$10,285 AUD
View
B
Retailer 16
-
£5,075 GBP
View
B
Retailer 17
-
£6,216 GBP
$8,329 USD
View
B
Retailer 18
-
£6,429 GBP
SGD 11,640 SGD
View
Most Expensive
B
Do Amore Diamonds
27-BE435D680 · Oct 31
£9,546 GBP
$12,790 USD
View
18 more retailers have this diamond
Prices start from £1,735 GBPSave up to £7,810 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
4.05ct Cushion
£1,735 GBP