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Cushion|Lab Grown|IGI

3.09ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG689568813

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG689568813

Diamond specifications and retailer prices

From £784 GBP
$1,051 USD
As of November 1, 2026
Save £6,067 GBP (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £6,851 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct 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 LG689568813 or 689568813. Listed at 20 retailers as of October 31, 2026, with prices from £784 to £6,851, a £6,067 spread on the same certified stone. Brilliant Earth lists it at £6,851. 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

3.09
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689568813
Dimensions9.53 × 7.99 × 5.22 mm
L/W Ratio1.19
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
9.53 mm7.99 mm3.09 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689568813
Side View
Table 62.0%Crown 37.3°Girdle: MED-THKPavilion 35.7°Culet: NoneDepth 65.3%

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 1
Current: £6,851 GBP|Low: £689 GBP|High: £6,851 GBP|Avg: £2,098 GBP
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 12
Retailer 13
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Retailer 20
November 2, 2026
Retailer 13£784 GBP
Retailer 18£866 GBP
Retailer 9£934 GBP
Retailer 11£1,013 GBP
Retailer 4£1,190 GBP
Retailer 6£1,211 GBP
Retailer 2£1,214 GBP
Retailer 15£1,263 GBP
Retailer 17£1,780 GBP
Retailer 19£1,830 GBP
Retailer 5£2,029 GBP
Retailer 3£2,172 GBP
Retailer 8£2,358 GBP
Retailer 14£2,673 GBP
Retailer 12£2,810 GBP
Retailer 10£2,943 GBP
Retailer 20£2,974 GBP
Retailer 16£3,004 GBP
Retailer 7£5,463 GBP
Brilliant Earth£6,851 GBP

39 data points across 20 retailers

20 retailers£784 GBP to £6,851 GBP

A
Cheapest Retailer
-
£784 GBP
$1,051 USD
Final sale: no returns
A
Retailer 2
-
£866 GBP
$1,160 USD
View
A
Retailer 3
-
£934 GBP
$1,252 USD
View
A
Retailer 4
-
£1,013 GBP
HK$10,600 HKD
View
A
Retailer 5
-
£1,190 GBP
$1,595 USD
View
A
Retailer 6
-
£1,211 GBP
$1,622 USD
View
A
Retailer 7
-
£1,214 GBP
View
A
Retailer 8
-
£1,263 GBP
€1,612 EUR
View
B+
Retailer 9
-
£1,780 GBP
A$3,669 AUD
View
B+
Retailer 10
-
£1,830 GBP
ZAR 39,614 ZAR
View
B+
Retailer 11
-
£2,029 GBP
$2,719 USD
View
Retailer 12
-
£2,172 GBP
View
Price last confirmed 24 days ago
B+
Retailer 13
-
£2,358 GBP
$3,159 USD
View
B+
Retailer 14
-
£2,673 GBP
View
B
Retailer 15
-
£2,810 GBP
$3,765 USD
View
B
Retailer 16
-
£2,943 GBP
SGD 5,329 SGD
View
Retailer 17
-
£2,974 GBP
$3,985 USD
View
Price last confirmed 11 days ago
B+
Retailer 18
-
£3,004 GBP
A$6,193 AUD
View
B
Retailer 19
-
£5,463 GBP
$7,320 USD
View
Most Expensive
B
Brilliant Earth
14960227Y · Oct 31
£6,851 GBP
$9,180 USD
View
19 more retailers have this diamond
Prices start from £784 GBPSave up to £6,067 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
3.09ct Cushion
£784 GBP