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Cushion|Lab Grown|IGI

5.56ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799670250

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799670250

Diamond specifications and retailer prices

From £6,601 GBP
$8,844 USD
As of November 1, 2026
Save £33,845 GBP (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £40,446 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.56ct lab-grown cushion diamond

This 5.56ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799670250 or 799670250. Listed at 14 retailers as of October 31, 2026, with prices from £6,601 to £40,446, a £33,845 spread on the same certified stone. With Clarity lists it at £40,446. 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

5.56
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799670250
Dimensions11.51 × 9.62 × 6.31 mm
L/W Ratio1.20
Girdle conditionFaceted
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
11.51 mm9.62 mm5.56 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799670250
Side View
Table 60.0%Crown 38.2°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 65.6%

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: Nov 1
Current: £8,994 GBP|Low: £6,601 GBP|High: £41,345 GBP|Avg: £16,417 GBP|-17.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
November 1, 2026
Retailer 7£6,601 GBP
Retailer 4£7,991 GBP
Retailer 12£8,130 GBP
Retailer 1£8,994 GBP
Retailer 5£12,493 GBP
Retailer 9£13,061 GBP
Retailer 8£13,629 GBP
Retailer 2£13,925 GBP
Retailer 11£15,139 GBP
Retailer 6£15,408 GBP
Retailer 3£20,997 GBP
Retailer 10£23,650 GBP
With Clarity£40,446 GBP

39 data points across 13 retailers

14 retailers£6,601 GBP to £40,446 GBP

A
Cheapest Retailer
-
£6,601 GBP
$8,844 USD
A
Retailer 2
-
£7,991 GBP
$10,707 USD
View
A
Retailer 3
-
£8,130 GBP
HK$85,100 HKD
View
A
Retailer 4
-
£8,994 GBP
View
Retailer 5
-
£10,022 GBP
$13,429 USD
View
Price last confirmed 83 days ago
A
Retailer 6
-
£12,493 GBP
€15,942 EUR
View
A
Retailer 7
-
£13,061 GBP
$17,500 USD
View
B+
Retailer 8
-
£13,629 GBP
$18,262 USD
View
B+
Retailer 9
-
£13,925 GBP
View
B+
Retailer 10
-
£15,139 GBP
ZAR 327,704 ZAR
View
B+
Retailer 11
-
£15,408 GBP
$20,645 USD
View
B+
Retailer 12
-
£20,997 GBP
$28,134 USD
View
B
Retailer 13
-
£23,650 GBP
$31,689 USD
View
Most Expensive
B
With Clarity
799670250 · Oct 31
£40,446 GBP
$54,193 USD
View
13 more retailers have this diamond
Prices start from £6,601 GBPSave up to £33,845 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
5.56ct Cushion
£6,601 GBP