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Round|Lab Grown|IGI

5.51ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG608398194

Shape and cutting style on the report: Round brilliant

Certificate IGI LG608398194

Diamond specifications and retailer prices

From £551 GBP
$738 USD
As of October 29, 2026
Save £1,971 GBP (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,277 GBP at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG608398194 or 608398194. Listed at 17 retailers as of October 29, 2026, with a 358% 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

5.51
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG608398194
Dimensions11.41 × 11.45 × 6.87 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
11.41 mm11.45 mm5.51 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG608398194
Side View
Table 58.0%Crown 33.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.1%

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: £5,277 GBP|Low: £551 GBP|High: £6,508 GBP|Avg: £1,576 GBP|-18.9%
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
October 31, 2026
Retailer 4£551 GBP
Retailer 12£599 GBP
Retailer 15£639 GBP
Retailer 17£639 GBP
Retailer 16£840 GBP
Retailer 7£992 GBP
Retailer 10£1,014 GBP
Retailer 5£1,034 GBP
Retailer 11£1,037 GBP
Retailer 2£1,074 GBP
Retailer 13£1,573 GBP
Retailer 8£1,623 GBP
Retailer 3£1,796 GBP
Retailer 6£2,159 GBP
Retailer 9£2,202 GBP
Retailer 14£2,522 GBP
Brilliant Earth£5,277 GBP

38 data points across 17 retailers

17 retailers£551 GBP to £2,522 GBP

A
Cheapest Retailer
-
£551 GBP
$738 USD
A
Retailer 2
-
£599 GBP
$803 USD
View
Retailer 3
-
£639 GBP
$856 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
£639 GBP
$856 USD
View
Retailer 5
-
£840 GBP
View
Price last confirmed 15 days ago
A
Retailer 6
-
£992 GBP
$1,329 USD
View
A
Retailer 7
-
£1,014 GBP
View
B+
Retailer 8
-
£1,034 GBP
$1,386 USD
View
A
Retailer 9
-
£1,037 GBP
$1,390 USD
View
A
Retailer 10
-
£1,074 GBP
€1,371 EUR
View
B+
Retailer 11
-
£1,573 GBP
$2,108 USD
View
B+
Retailer 12
-
£1,623 GBP
$2,175 USD
View
B+
Retailer 13
-
£1,796 GBP
$2,407 USD
View
B
Retailer 14
-
£2,159 GBP
$2,893 USD
View
Retailer 15
-
£2,202 GBP
$2,951 USD
View
Price last confirmed 14 days ago
B
Retailer 16
-
£2,522 GBP
View
Most Expensive
Brilliant Earth
8717452A · Oct 16
£5,277 GBP
$7,070 USD
View
Price last confirmed 16 days ago
16 more retailers have this diamond
Prices start from £551 GBPSave up to £1,971 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
5.51ct Round
£551 GBP