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Oval|Lab Grown|IGI

5.56ct G SI2 Oval Lab Grown Diamond

ID • G/SI2 • IGI LG634488851

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG634488851

Diamond specifications and retailer prices

From £619 GBP
$830 USD
As of October 28, 2026
Save £2,833 GBP (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,453 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 5.56ct lab-grown oval diamond

This 5.56ct lab-grown oval sits in the over five carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG634488851 or 634488851. Listed at 13 retailers as of October 28, 2026, with prices from £619 to £3,453, a £2,833 spread on the same certified stone. The Diamond Guys lists it at £3,453. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.56
Carat
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634488851
Dimensions14.71 × 9.92 × 6.19 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.71 mm9.92 mm5.56 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634488851
Side View
Table 60.0%Crown 35.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.4%

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 28
Current: £1,543 GBP|Low: £569 GBP|High: £5,165 GBP|Avg: £1,904 GBP|+37.1%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
The Diamond Guys
October 31, 2026
Retailer 17£619 GBP
Retailer 4£661 GBP
Retailer 14£831 GBP
Retailer 8£927 GBP
Retailer 16£1,043 GBP
Retailer 5£1,223 GBP
Retailer 11£1,285 GBP
Retailer 13£1,332 GBP
Retailer 1£1,543 GBP
Retailer 2£1,926 GBP
Retailer 10£1,954 GBP
Retailer 7£1,990 GBP
Retailer 3£2,049 GBP
Retailer 12£2,426 GBP
Retailer 6£2,507 GBP
Retailer 15£2,747 GBP
The Diamond Guys£3,453 GBP
Retailer 9£4,417 GBP

11 data points across 18 retailers

13 retailers£619 GBP to £3,453 GBP

A
Cheapest Retailer
-
£619 GBP
$830 USD
A
Retailer 2
-
£661 GBP
$885 USD
View
B+
Retailer 3
-
£831 GBP
$1,113 USD
View
B+
Retailer 4
-
£1,043 GBP
$1,398 USD
View
B+
Retailer 5
-
£1,285 GBP
$1,722 USD
View
B
Retailer 6
-
£1,332 GBP
View
B
Retailer 7
-
£1,543 GBP
View
B
Retailer 8
-
£1,926 GBP
$2,580 USD
View
B
Retailer 9
-
£1,954 GBP
$2,618 USD
View
B
Retailer 10
-
£2,049 GBP
$2,746 USD
View
B
Retailer 11
-
£2,426 GBP
$3,250 USD
View
B
Retailer 12
-
£2,747 GBP
View
Most Expensive
B
The Diamond Guys
1995216777 · Oct 30
£3,453 GBP
$4,626 USD
View
12 more retailers have this diamond
Prices start from £619 GBPSave up to £2,833 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
5.56ct Oval
£619 GBP