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Round|Lab Grown|IGI

5.03ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG804659258

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804659258

Diamond specifications and retailer prices

From £5,768 GBP
$7,729 USD
As of October 29, 2026
Save £20,455 GBP (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £26,223 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 5.03ct lab-grown round diamond

This 5.03ct 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 LG804659258 or 804659258. Listed at 14 retailers as of October 29, 2026, with prices from £5,768 to £26,223, a £20,455 spread on the same certified stone. With Clarity lists it at £26,223. 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

5.03
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659258
Dimensions11.11 × 11.06 × 6.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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 mm11.06 mm5.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659258
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.5%

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: £16,263 GBP|Low: £5,677 GBP|High: £25,517 GBP|Avg: £12,429 GBP|-36.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 11£5,768 GBP
Retailer 2£6,763 GBP
Retailer 12£7,031 GBP
Retailer 3£7,636 GBP
Retailer 6£7,946 GBP
Retailer 9£10,831 GBP
Retailer 5£11,254 GBP
Retailer 10£11,850 GBP
Retailer 8£12,792 GBP
Retailer 7£13,167 GBP
Retailer 1£16,263 GBP
Retailer 4£18,137 GBP
Retailer 13£21,604 GBP

42 data points across 13 retailers

14 retailers£5,768 GBP to £26,223 GBP

A
Cheapest Retailer
-
£5,768 GBP
$7,729 USD
A
Retailer 2
-
£6,763 GBP
$9,062 USD
View
A
Retailer 3
-
£7,031 GBP
HK$73,600 HKD
View
Retailer 4
-
£7,069 GBP
$9,471 USD
View
Price last confirmed 95 days ago
A
Retailer 5
-
£7,636 GBP
$10,232 USD
View
A
Retailer 6
-
£7,946 GBP
View
A
Retailer 7
-
£10,831 GBP
€13,821 EUR
View
A
Retailer 8
-
£11,850 GBP
$15,878 USD
View
B+
Retailer 9
-
£12,792 GBP
View
B+
Retailer 10
-
£13,167 GBP
ZAR 285,005 ZAR
View
B+
Retailer 11
-
£16,263 GBP
$21,790 USD
View
Retailer 12
-
£18,137 GBP
$24,301 USD
View
Price last confirmed 31 days ago
B
Retailer 13
-
£21,604 GBP
$28,947 USD
View
Most Expensive
B
With Clarity
804659258 · Oct 30
£26,223 GBP
$35,136 USD
View
13 more retailers have this diamond
Prices start from £5,768 GBPSave up to £20,455 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
5.03ct Round
£5,768 GBP