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Round|Lab Grown|IGI

5.18ct G VS2 Round Lab Grown Diamond

ID • G/VS2 • IGI LG621455574

Shape and cutting style on the report: Round brilliant

Certificate IGI LG621455574

Diamond specifications and retailer prices

From £528 GBP
$708 USD
As of October 29, 2026
Save £2,636 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,164 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.18ct lab-grown round diamond

This 5.18ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG621455574 or 621455574. Listed at 17 retailers as of October 29, 2026, with prices from £528 to £3,164, a £2,636 spread on the same certified stone. Brilliant Earth lists it at £3,164. 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

5.18
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621455574
Dimensions11.11 × 11.08 × 6.85 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.11 mm11.08 mm5.18 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621455574
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 41°Culet: NoneDepth 61.7%

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 29
Current: £3,164 GBP|Low: £505 GBP|High: £3,164 GBP|Avg: £1,243 GBP
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
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Retailer 17
October 31, 2026
Retailer 4£528 GBP
Retailer 14£575 GBP
Retailer 15£613 GBP
Retailer 17£613 GBP
Retailer 16£807 GBP
Retailer 5£958 GBP
Retailer 10£978 GBP
Retailer 11£980 GBP
Retailer 8£996 GBP
Retailer 2£1,002 GBP
Retailer 6£1,374 GBP
Retailer 13£1,510 GBP
Retailer 3£1,724 GBP
Retailer 9£2,090 GBP
Retailer 7£2,114 GBP
Retailer 12£2,421 GBP
Brilliant Earth£3,164 GBP

41 data points across 17 retailers

17 retailers£528 GBP to £3,164 GBP

A
Cheapest Retailer
-
£528 GBP
$708 USD
A
Retailer 2
-
£575 GBP
$771 USD
View
Retailer 3
-
£613 GBP
$822 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
£613 GBP
$822 USD
View
Retailer 5
-
£807 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
£958 GBP
$1,283 USD
View
B+
Retailer 7
-
£978 GBP
$1,310 USD
View
A
Retailer 8
-
£980 GBP
View
B+
Retailer 9
-
£996 GBP
$1,335 USD
View
A
Retailer 10
-
£1,002 GBP
€1,278 EUR
View
B+
Retailer 11
-
£1,374 GBP
$1,841 USD
View
B+
Retailer 12
-
£1,510 GBP
$2,023 USD
View
B+
Retailer 13
-
£1,724 GBP
$2,310 USD
View
B
Retailer 14
-
£2,090 GBP
$2,801 USD
View
Retailer 15
-
£2,114 GBP
$2,832 USD
View
Price last confirmed 13 days ago
B
Retailer 16
-
£2,421 GBP
View
Most Expensive
B
Brilliant Earth
9287301A · Oct 29
£3,164 GBP
$4,240 USD
View
16 more retailers have this diamond
Prices start from £528 GBPSave up to £2,636 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
5.18ct Round
£528 GBP