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Cushion|Lab Grown|IGI

5.39ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG837647186

Shape and cutting style on the report: Cushion mixed cut

Certificate IGI LG837647186

Diamond specifications and retailer prices

From £4,870 GBP
$6,525 USD
As of October 30, 2026
Save £24,603 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £29,473 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 5.39ct lab-grown cushion diamond

This 5.39ct 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 LG837647186 or 837647186. Listed at 13 retailers as of October 30, 2026, with prices from £4,870 to £29,473, a £24,603 spread on the same certified stone. Do Amore Diamonds lists it at £29,473. 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

5.39
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837647186
Dimensions11.72 × 8.31 × 5.35 mm
L/W Ratio1.41
Culet sizeLarge
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
11.72 mm8.31 mm5.39 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837647186
Side View
Table 63.0%Crown 34.3°Girdle: STK-THKPavilion 39.6°Culet: LargeDepth 64.4%

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: Oct 30
Current: £29,473 GBP|Low: £4,870 GBP|High: £35,681 GBP|Avg: £13,330 GBP|-1.5%
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
Retailer 14
October 31, 2026
Retailer 8£4,870 GBP
Retailer 7£5,392 GBP
Retailer 14£5,662 GBP
Retailer 10£6,299 GBP
Retailer 3£6,395 GBP
Retailer 4£8,057 GBP
Retailer 2£10,604 GBP
Retailer 11£11,939 GBP
Retailer 9£12,658 GBP
Retailer 5£13,470 GBP
Retailer 13£15,213 GBP
Retailer 12£15,254 GBP
Do Amore Diamonds£29,473 GBP
Retailer 6£30,061 GBP

22 data points across 14 retailers

13 retailers£4,870 GBP to £29,473 GBP

A
Cheapest Retailer
-
£4,870 GBP
$6,525 USD
A
Retailer 2
-
£5,095 GBP
$6,827 USD
View
A
Retailer 3
-
£5,392 GBP
$7,225 USD
View
A
Retailer 4
-
£6,299 GBP
$8,440 USD
View
A
Retailer 5
-
£6,395 GBP
$8,568 USD
View
Retailer 6
-
£8,057 GBP
$10,795 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
£10,604 GBP
€13,531 EUR
View
A
Retailer 8
-
£11,939 GBP
View
B+
Retailer 9
-
£12,658 GBP
$16,960 USD
View
Retailer 10
-
£13,470 GBP
$18,048 USD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
£15,213 GBP
$20,384 USD
View
B+
Retailer 12
-
£15,254 GBP
$20,439 USD
View
Most Expensive
B
Do Amore Diamonds
27-4DBD81709 · Oct 31
£29,473 GBP
$39,490 USD
View
12 more retailers have this diamond
Prices start from £4,870 GBPSave up to £24,603 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
5.39ct Cushion
£4,870 GBP