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Cushion|Lab Grown|IGI

2.99ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG729566210

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG729566210

Diamond specifications and retailer prices

From £990 GBP
$1,327 USD
As of October 30, 2026
Save £5,607 GBP (85%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £6,598 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 2.99ct lab-grown cushion diamond

This 2.99ct lab-grown cushion sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729566210 or 729566210. Listed at 13 retailers as of October 30, 2026, with prices from £990 to £6,598, a £5,607 spread on the same certified stone. Do Amore Diamonds lists it at £6,598. 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

2.99
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729566210
Dimensions8.45 × 8.40 × 5.39 mm
L/W Ratio1.01
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
8.45 mm8.40 mm2.99 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729566210
Side View
Table 62.0%Crown 33.2°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 64.2%

Caratlytics Score

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A+
Exceptional
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 30
Current: £6,598 GBP|Low: £990 GBP|High: £8,031 GBP|Avg: £3,179 GBP|-17.8%
Do Amore Diamonds
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 30, 2026
Retailer 2£990 GBP
Retailer 5£1,094 GBP
Retailer 13£1,105 GBP
Retailer 10£1,552 GBP
Retailer 7£1,563 GBP
Retailer 6£2,030 GBP
Retailer 9£2,458 GBP
Retailer 11£2,617 GBP
Retailer 8£3,242 GBP
Retailer 12£4,064 GBP
Retailer 3£5,736 GBP
Retailer 4£6,112 GBP
Do Amore Diamonds£6,598 GBP

32 data points across 13 retailers

13 retailers£990 GBP to £6,598 GBP

A+
Cheapest Retailer
-
£990 GBP
$1,327 USD
A
Retailer 2
-
£1,094 GBP
$1,466 USD
View
Final sale: no returns
A
Retailer 3
-
£1,105 GBP
$1,480 USD
View
A
Retailer 4
-
£1,552 GBP
$2,079 USD
View
A
Retailer 5
-
£1,563 GBP
€1,994 EUR
View
A
Retailer 6
-
£2,030 GBP
$2,720 USD
View
A
Retailer 7
-
£2,458 GBP
$3,293 USD
View
Retailer 8
-
£2,617 GBP
A$5,395 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
£3,242 GBP
View
Retailer 10
-
£4,064 GBP
$5,445 USD
View
Price last confirmed 12 days ago
Retailer 11
-
£5,736 GBP
A$11,825 AUD
View
Price last confirmed 22 days ago
B
Retailer 12
-
£6,112 GBP
$8,190 USD
View
Most Expensive
B
Do Amore Diamonds
27-E2006D29D · Oct 31
£6,598 GBP
$8,840 USD
View
12 more retailers have this diamond
Prices start from £990 GBPSave up to £5,607 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+
2.99ct Cushion
£990 GBP