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Oval|Lab Grown|IGI

4.27ct H VS1 Oval Lab Grown Diamond

EX • H/VS1 • IGI LG594339671

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG594339671

Diamond specifications and retailer prices

From £779 GBP
$1,044 USD
As of October 30, 2026
Save £286 GBP (27%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,065 GBP at Yorxs · As of October 25, 2026
View at Yorxs

About this 4.27ct lab-grown oval diamond

This 4.27ct lab-grown oval sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG594339671 or 594339671. Listed at 2 retailers as of October 25, 2026, with prices from £779 to £1,065, a £286 spread on the same certified stone. Yorxs lists it at £1,065. 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

4.27
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594339671
Dimensions13.73 × 9.17 × 5.38 mm
L/W Ratio1.50
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
13.73 mm9.17 mm4.27 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594339671
Side View
Table 61.0%Crown 31.7°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 58.7%

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 30
Current: £779 GBP|Low: £621 GBP|High: £3,381 GBP|Avg: £1,350 GBP
Retailer 1
Retailer 2
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Retailer 12
Yorxs
October 25, 2026
Retailer 11£621 GBP
Retailer 6£646 GBP
Retailer 3£680 GBP
Retailer 1£779 GBP
Retailer 8£1,039 GBP
Yorxs£1,065 GBP
Retailer 5£1,128 GBP
Retailer 2£1,168 GBP
Retailer 7£1,169 GBP
Retailer 9£1,513 GBP
Retailer 12£1,776 GBP
Retailer 4£2,589 GBP
Retailer 10£3,381 GBP

11 data points across 13 retailers

2 retailers£779 GBP to £1,065 GBP

A
Cheapest Retailer
-
£779 GBP
$1,044 USD
Most Expensive
B+
Yorxs
452023725 · Oct 25
£1,065 GBP
€1,359 EUR
View
1 more retailer has this diamond
Prices start from £779 GBPSave up to £286 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
4.27ct Oval
£779 GBP