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Cushion|Lab Grown|IGI

5.11ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG683551890

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG683551890

Diamond specifications and retailer prices

From £1,072 GBP
$1,436 USD
As of October 29, 2026
Save £3,675 GBP (77%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,747 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.11ct lab-grown cushion diamond

This 5.11ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG683551890 or 683551890. Listed at 8 retailers as of October 29, 2026, with prices from £1,072 to £4,747, a £3,675 spread on the same certified stone. Brilliant Earth lists it at £4,747. 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

5.11
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683551890
Dimensions11.81 × 9.09 × 6.17 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
11.81 mm9.09 mm5.11 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683551890
Side View
Table 61.0%Crown 34.4°Girdle: MED-THKPavilion 40°Culet: NoneDepth 67.9%

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 29
Current: £4,747 GBP|Low: £1,072 GBP|High: £4,888 GBP|Avg: £2,695 GBP|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7£1,072 GBP
Retailer 2£1,168 GBP
Retailer 4£1,471 GBP
Retailer 6£1,566 GBP
Retailer 5£3,453 GBP
Retailer 3£3,735 GBP
Retailer 8£4,254 GBP
Brilliant Earth£4,747 GBP

11 data points across 8 retailers

8 retailers£1,072 GBP to £4,747 GBP

A
Cheapest Retailer
-
£1,072 GBP
$1,436 USD
Final sale: no returns
A
Retailer 2
-
£1,168 GBP
$1,565 USD
View
A
Retailer 3
-
£1,471 GBP
HK$15,400 HKD
View
A
Retailer 4
-
£1,566 GBP
$2,098 USD
View
Retailer 5
-
£3,453 GBP
A$7,117 AUD
View
Price last confirmed 23 days ago
Retailer 6
-
£3,735 GBP
$5,005 USD
View
Price last confirmed 10 days ago
B
Retailer 7
-
£4,254 GBP
SGD 7,702 SGD
View
Most Expensive
B
Brilliant Earth
14954186Y · Oct 29
£4,747 GBP
$6,360 USD
View
7 more retailers have this diamond
Prices start from £1,072 GBPSave up to £3,675 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
5.11ct Cushion
£1,072 GBP