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Cushion|Lab Grown|IGI

4.99ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG844658123

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG844658123

Diamond specifications and retailer prices

From £687 GBP
HK$7,200 HKD
As of November 3, 2026
Save £3,069 GBP (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,756 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.99ct lab-grown cushion diamond

This 4.99ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG844658123 or 844658123. Listed at 19 retailers as of November 2, 2026, with prices from £687 to £3,756, a £3,069 spread on the same certified stone. Brilliant Earth lists it at £3,756. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.99
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844658123
Dimensions12.04 × 8.61 × 5.59 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.04 mm8.61 mm4.99 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844658123
Side View
Table 63.0%Crown 33.7°Girdle: STK-THKPavilion 34.4°Culet: NoneDepth 64.9%

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: Nov 3
Current: £3,756 GBP|Low: £527 GBP|High: £3,756 GBP|Avg: £1,414 GBP
Brilliant Earth
Retailer 2
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Retailer 19
November 2, 2026
Retailer 16£529 GBP
Retailer 9£569 GBP
Retailer 13£687 GBP
Retailer 19£730 GBP
Retailer 10£874 GBP
Retailer 12£915 GBP
Retailer 17£940 GBP
Retailer 5£962 GBP
Retailer 3£1,245 GBP
Retailer 8£1,273 GBP
Retailer 2£1,344 GBP
Retailer 4£1,565 GBP
Retailer 6£1,944 GBP
Retailer 14£1,989 GBP
Retailer 7£2,015 GBP
Retailer 11£2,037 GBP
Retailer 18£2,492 GBP
Retailer 15£2,803 GBP
Brilliant Earth£3,756 GBP

15 data points across 19 retailers

19 retailers£687 GBP to £3,756 GBP

Retailer 1
-
£529 GBP
Price last confirmed 7 days ago
A
Retailer 2
-
£687 GBP
HK$7,200 HKD
View
Retailer 3
-
£730 GBP
$980 USD
View
Price last confirmed 6 days ago
Retailer 4
-
£874 GBP
$1,173 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£915 GBP
€1,170 EUR
View
Retailer 6
-
£940 GBP
View
Price last confirmed 7 days ago
Retailer 7
-
£962 GBP
$1,291 USD
View
Price last confirmed 7 days ago
Retailer 8
-
£1,245 GBP
ZAR 26,998 ZAR
View
Price last confirmed 10 days ago
Retailer 9
-
£1,273 GBP
A$2,628 AUD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
£1,344 GBP
$1,804 USD
View
B+
Retailer 11
-
£1,565 GBP
$2,100 USD
View
Retailer 12
-
£1,944 GBP
$2,609 USD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
£1,989 GBP
SGD 3,607 SGD
View
Retailer 14
-
£2,015 GBP
$2,704 USD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
£2,037 GBP
$2,733 USD
View
Retailer 16
-
£2,492 GBP
View
Price last confirmed 7 days ago
B
Retailer 17
-
£2,803 GBP
$3,761 USD
View
Retailer 18
-
£3,014 GBP
$4,045 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
22191880A · Nov 2
£3,756 GBP
$5,040 USD
View
18 more retailers have this diamond
Prices start from £687 GBPSave up to £3,069 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
4.99ct Cushion
£687 GBP