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Cushion|Lab Grown|IGI

5.10ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG787622989

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG787622989

Diamond specifications and retailer prices

From £6,202 GBP
$8,310 USD
As of October 29, 2026
Save £30,898 GBP (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £37,100 GBP at With Clarity · As of October 30, 2026
View at With Clarity

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG787622989 or 787622989. Listed at 12 retailers as of October 29, 2026, with prices from £6,202 to £37,100, a £30,898 spread on the same certified stone. With Clarity lists it at £37,100. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787622989
Dimensions11.60 × 9.22 × 6.03 mm
L/W Ratio1.26
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
11.60 mm9.22 mm5.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787622989
Side View
Table 61.0%Crown 35.4°Girdle: MED-STKPavilion 35°Culet: NoneDepth 65.4%

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: £11,979 GBP|Low: £6,202 GBP|High: £44,275 GBP|Avg: £16,558 GBP|-44.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 30, 2026
Retailer 8£6,202 GBP
Retailer 2£7,333 GBP
Retailer 5£7,461 GBP
Retailer 10£7,830 GBP
Retailer 3£8,449 GBP
Retailer 6£11,540 GBP
Retailer 1£11,979 GBP
Retailer 7£13,052 GBP
Retailer 9£19,260 GBP
Retailer 4£22,363 GBP
With Clarity£37,100 GBP

39 data points across 11 retailers

12 retailers£6,202 GBP to £37,100 GBP

A
Cheapest Retailer
-
£6,202 GBP
$8,310 USD
A
Retailer 2
-
£7,333 GBP
$9,825 USD
View
A
Retailer 3
-
£7,461 GBP
HK$78,100 HKD
View
A
Retailer 4
-
£7,830 GBP
$10,491 USD
View
A
Retailer 5
-
£8,449 GBP
View
Retailer 6
-
£9,960 GBP
$13,345 USD
View
Price last confirmed 82 days ago
A
Retailer 7
-
£11,540 GBP
€14,726 EUR
View
A
Retailer 8
-
£11,979 GBP
$16,050 USD
View
B+
Retailer 9
-
£13,052 GBP
View
B+
Retailer 10
-
£19,260 GBP
$25,806 USD
View
B
Retailer 11
-
£22,363 GBP
$29,964 USD
View
Most Expensive
B
With Clarity
787622989 · Oct 30
£37,100 GBP
$49,710 USD
View
11 more retailers have this diamond
Prices start from £6,202 GBPSave up to £30,898 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
£6,202 GBP