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Cushion|Lab Grown|IGI

4.86ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG797625490

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG797625490

Diamond specifications and retailer prices

From £993 GBP
$1,330 USD
As of October 29, 2026
Save £3,403 GBP (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,530 GBP at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

About this 4.86ct lab-grown cushion diamond

This 4.86ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG797625490 or 797625490. Listed at 9 retailers as of October 29, 2026, with a 343% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.86
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797625490
Dimensions11.60 × 9.13 × 6.14 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.60 mm9.13 mm4.86 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797625490
Side View
Table 65.0%Crown 29.6°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 67.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £4,396 GBP|Low: £768 GBP|High: £4,396 GBP|Avg: £2,172 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 19, 2026
Retailer 10£993 GBP
Retailer 6£1,082 GBP
Retailer 3£1,096 GBP
Retailer 4£1,234 GBP
Retailer 7£1,366 GBP
Retailer 9£1,717 GBP
Retailer 13£1,844 GBP
Retailer 12£2,116 GBP
Retailer 5£2,664 GBP
Retailer 8£3,292 GBP
Retailer 2£3,358 GBP
Retailer 11£3,954 GBP
Brilliant Earth£4,396 GBP

7 data points across 13 retailers

9 retailers£993 GBP to £4,396 GBP

A
Cheapest Retailer
-
£993 GBP
$1,330 USD
Final sale: no returns
A
Retailer 2
-
£1,082 GBP
$1,450 USD
View
A
Retailer 3
-
£1,366 GBP
HK$14,300 HKD
View
B+
Retailer 4
-
£1,717 GBP
$2,300 USD
View
Retailer 5
-
£3,292 GBP
A$6,787 AUD
View
Price last confirmed 22 days ago
Retailer 6
-
£3,358 GBP
$4,500 USD
View
Price last confirmed 12 days ago
B
Retailer 7
-
£3,954 GBP
SGD 7,160 SGD
View
B
Retailer 8
-
£4,396 GBP
$5,890 USD
View
Most Expensive
Brilliant Earth
21190080B · Oct 1
£4,530 GBP
$6,070 USD
View
Price last confirmed 29 days ago
8 more retailers have this diamond
Prices start from £993 GBPSave up to £3,403 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
4.86ct Cushion
£993 GBP