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Cushion|Lab Grown|IGI

5.25ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG804665300

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804665300

Diamond specifications and retailer prices

From £4,816 GBP
$6,453 USD
As of October 30, 2026
Save £26,866 GBP (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £31,682 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 5.25ct lab-grown cushion diamond

This 5.25ct 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 LG804665300 or 804665300. Listed at 10 retailers as of October 30, 2026, with prices from £4,816 to £31,682, a £26,866 spread on the same certified stone. Do Amore Diamonds lists it at £31,682. 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

5.25
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804665300
Dimensions11.51 × 9.38 × 6.13 mm
L/W Ratio1.23
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 mm9.38 mm5.25 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804665300
Side View
Table 59.0%Crown 35.6°Girdle: STK-THKPavilion 34.9°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
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: £31,682 GBP|Low: £4,816 GBP|High: £36,578 GBP|Avg: £12,498 GBP|-13.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 4£4,816 GBP
Retailer 7£5,254 GBP
Retailer 6£6,006 GBP
Retailer 11£6,926 GBP
Retailer 10£7,803 GBP
Retailer 9£8,295 GBP
Retailer 2£10,328 GBP
Retailer 8£11,850 GBP
Retailer 5£12,329 GBP
Retailer 3£18,013 GBP
Do Amore Diamonds£31,682 GBP

29 data points across 11 retailers

10 retailers£4,816 GBP to £31,682 GBP

A+
Cheapest Retailer
-
£4,816 GBP
$6,453 USD
A
Retailer 2
-
£5,254 GBP
$7,040 USD
View
A
Retailer 3
-
£6,006 GBP
$8,048 USD
View
A
Retailer 4
-
£6,926 GBP
$9,280 USD
View
Final sale: no returns
Retailer 5
-
£7,803 GBP
$10,455 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£8,295 GBP
$11,115 USD
View
A
Retailer 7
-
£10,328 GBP
€13,180 EUR
View
A
Retailer 8
-
£11,850 GBP
View
B+
Retailer 9
-
£12,329 GBP
$16,520 USD
View
Most Expensive
B
Do Amore Diamonds
27-B344833F3 · Oct 31
£31,682 GBP
$42,450 USD
View
9 more retailers have this diamond
Prices start from £4,816 GBPSave up to £26,866 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+
5.25ct Cushion
£4,816 GBP