Round|Lab Grown|IGI

5.13ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG815698254

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815698254

Diamond specifications and retailer prices

From £4,066 GBP
$5,448 USD
As of October 29, 2026
Save £15,589 GBP (79%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £26,025 GBP at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 5.13ct lab-grown round diamond

This 5.13ct 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 LG815698254 or 815698254. Listed at 22 retailers as of October 29, 2026, with a 383% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.13
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815698254
Dimensions11.07 × 11.01 × 6.81 mm
L/W Ratio1.01
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
11.07 mm11.01 mm5.13 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815698254
Side View
Table 56.0%Crown 35.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.7%

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: £14,135 GBP|Low: £4,066 GBP|High: £25,241 GBP|Avg: £9,467 GBP|-44.0%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 5£4,066 GBP
Retailer 19£4,261 GBP
Retailer 13£4,553 GBP
Retailer 4£4,717 GBP
Retailer 7£5,599 GBP
Retailer 3£5,809 GBP
Retailer 17£5,810 GBP
Retailer 12£6,024 GBP
Retailer 8£6,351 GBP
Retailer 6£7,283 GBP
Retailer 18£7,334 GBP
Retailer 14£8,488 GBP
Retailer 15£9,259 GBP
Retailer 16£9,582 GBP
Retailer 2£9,598 GBP
Brilliant Earth£14,135 GBP
Retailer 9£16,721 GBP
Retailer 10£17,945 GBP
Retailer 11£19,655 GBP

31 data points across 19 retailers

22 retailers£4,066 GBP to £19,655 GBP

A+
Cheapest Retailer
-
£4,066 GBP
$5,448 USD
A
Retailer 2
-
£4,261 GBP
$5,709 USD
View
A
Retailer 3
-
£4,553 GBP
$6,101 USD
View
Final sale: no returns
A
Retailer 4
-
£4,717 GBP
$6,320 USD
View
Retailer 5
-
£4,906 GBP
$6,573 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
£5,599 GBP
$7,502 USD
View
A
Retailer 7
-
£5,809 GBP
$7,783 USD
View
A
Retailer 8
-
£5,810 GBP
$7,785 USD
View
A
Retailer 9
-
£6,024 GBP
View
Retailer 10
-
£6,351 GBP
$8,510 USD
View
Price last confirmed 14 days ago
A
Retailer 11
-
£7,283 GBP
$9,759 USD
View
A
Retailer 12
-
£7,334 GBP
$9,827 USD
View
A
Retailer 13
-
£8,488 GBP
€10,831 EUR
View
A
Retailer 14
-
£8,996 GBP
$12,053 USD
View
A
Retailer 15
-
£9,259 GBP
$12,406 USD
View
A
Retailer 16
-
£9,582 GBP
ZAR 207,414 ZAR
View
A
Retailer 17
-
£9,598 GBP
View
B+
Retailer 18
-
£14,135 GBP
$18,940 USD
View
B+
Retailer 19
-
£16,721 GBP
$22,404 USD
View
B+
Retailer 20
-
£17,945 GBP
SGD 32,493 SGD
View
B+
Retailer 21
-
£19,655 GBP
$26,335 USD
View
Most Expensive
Brilliant Earth
20791066A · Sep 28
£26,025 GBP
$34,870 USD
View
Price last confirmed 33 days ago
21 more retailers have this diamond
Prices start from £4,066 GBPSave up to £15,589 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+
5.13ct Round
£4,066 GBP