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Round|Lab Grown|IGI

5.20ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG773639474

Shape and cutting style on the report: Round brilliant

Certificate IGI LG773639474

Diamond specifications and retailer prices

From £4,380 GBP
$5,869 USD
As of October 29, 2026
Save £28,364 GBP (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £32,744 GBP at Mervis Diamond Importers · As of October 31, 2026
View at Mervis Diamond Importers

About this 5.2ct lab-grown round diamond

This 5.2ct lab-grown round 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 LG773639474 or 773639474. Listed at 22 retailers as of October 29, 2026, with prices from £4,380 to £32,744, a £28,364 spread on the same certified stone. Mervis Diamond Importers lists it at £32,744. 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

5.20
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773639474
Dimensions11.11 × 11.07 × 6.89 mm
L/W Ratio1.00
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
11.11 mm11.07 mm5.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773639474
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.1%

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 29
Current: £32,744 GBP|Low: £4,380 GBP|High: £32,744 GBP|Avg: £9,920 GBP
Mervis Diamond Importers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 19£4,380 GBP
Retailer 16£4,590 GBP
Retailer 10£4,905 GBP
Retailer 11£5,081 GBP
Retailer 15£5,083 GBP
Retailer 18£5,798 GBP
Retailer 17£6,148 GBP
Retailer 6£6,504 GBP
Retailer 4£6,657 GBP
Retailer 2£7,010 GBP
Retailer 3£7,360 GBP
Retailer 14£8,843 GBP
Retailer 13£11,272 GBP
Retailer 12£11,394 GBP
Retailer 5£13,984 GBP
Retailer 8£14,905 GBP
Retailer 9£19,344 GBP
Retailer 7£30,137 GBP
Mervis Diamond Importers£32,744 GBP

43 data points across 19 retailers

22 retailers£4,380 GBP to £32,744 GBP

A+
Cheapest Retailer
-
£4,380 GBP
$5,869 USD
A
Retailer 2
-
£4,590 GBP
$6,150 USD
View
A
Retailer 3
-
£4,905 GBP
$6,572 USD
View
Final sale: no returns
A
Retailer 4
-
£5,081 GBP
$6,808 USD
View
Retailer 5
-
£5,081 GBP
$6,808 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
£5,083 GBP
$6,810 USD
View
A
Retailer 7
-
£5,798 GBP
$7,769 USD
View
A
Retailer 8
-
£6,148 GBP
$8,237 USD
View
Retailer 9
-
£6,504 GBP
$8,715 USD
View
Price last confirmed 14 days ago
A
Retailer 10
-
£6,657 GBP
$8,920 USD
View
A
Retailer 11
-
£7,010 GBP
View
A
Retailer 12
-
£7,360 GBP
$9,861 USD
View
A
Retailer 13
-
£8,843 GBP
€11,285 EUR
View
A
Retailer 14
-
£10,210 GBP
$13,680 USD
View
A
Retailer 15
-
£11,272 GBP
View
A
Retailer 16
-
£11,394 GBP
ZAR 246,636 ZAR
View
B+
Retailer 17
-
£12,920 GBP
$17,312 USD
View
B+
Retailer 18
-
£13,984 GBP
$18,737 USD
View
B+
Retailer 19
-
£14,905 GBP
$19,971 USD
View
B+
Retailer 20
-
£19,344 GBP
$25,918 USD
View
B
Retailer 21
-
£30,137 GBP
$40,380 USD
View
Most Expensive
B
Mervis Diamond Importers
1974990112 · Oct 31
£32,744 GBP
$43,873 USD
View
21 more retailers have this diamond
Prices start from £4,380 GBPSave up to £28,364 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+
5.20ct Round
£4,380 GBP