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Cushion|Lab Grown|IGI

5.10ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG742501489

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG742501489

Diamond specifications and retailer prices

From £1,292 GBP
$1,731 USD
As of October 30, 2026
Save £2,569 GBP (67%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,861 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.1ct lab-grown cushion diamond

This 5.1ct 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 LG742501489 or 742501489. Listed at 9 retailers as of October 30, 2026, with prices from £1,292 to £3,861, a £2,569 spread on the same certified stone. Taylor and Hart lists it at £3,861. 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

5.10
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.3°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742501489
Dimensions11.88 × 9.27 × 6.21 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.88 mm9.27 mm5.10 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742501489
Side View
Table 65.0%Crown 30.3°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 67.0%

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 30
Current: £1,520 GBP|Low: £985 GBP|High: £5,068 GBP|Avg: £2,605 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 31, 2026
Retailer 7£985 GBP
Retailer 8£1,292 GBP
Retailer 1£1,520 GBP
Retailer 10£1,523 GBP
Retailer 6£1,567 GBP
Retailer 2£2,204 GBP
Retailer 5£2,853 GBP
Retailer 3£3,514 GBP
Retailer 4£3,687 GBP
Taylor and Hart£3,861 GBP
Retailer 9£5,068 GBP

40 data points across 11 retailers

9 retailers£1,292 GBP to £3,861 GBP

Retailer 1
-
£985 GBP
$1,320 USD
Price last confirmed 14 days ago
A
Retailer 2
-
£1,292 GBP
$1,731 USD
View
A
Retailer 3
-
£1,520 GBP
View
A
Retailer 4
-
£1,523 GBP
$2,040 USD
View
A
Retailer 5
-
£1,567 GBP
$2,099 USD
View
B+
Retailer 6
-
£2,853 GBP
$3,823 USD
View
B
Retailer 7
-
£3,514 GBP
View
Retailer 8
-
£3,687 GBP
$4,940 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Taylor and Hart
NBIGGM7 · Oct 30
£3,861 GBP
$5,173 USD
View
8 more retailers have this diamond
Prices start from £1,292 GBPSave up to £2,569 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
5.10ct Cushion
£1,292 GBP