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Round|Lab Grown|IGI

3.92ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG618469455

Shape and cutting style on the report: Round brilliant

Certificate IGI LG618469455

Diamond specifications and retailer prices

From £1,071 GBP
CA$1,992 CAD
As of October 30, 2026
Save £474 GBP (31%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,545 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.92ct lab-grown round diamond

This 3.92ct lab-grown round 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 LG618469455 or 618469455. Listed at 4 retailers as of October 30, 2026, with prices from £1,071 to £1,545, a £474 spread on the same certified stone. The Diamond Guys lists it at £1,545. 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

3.92
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618469455
Dimensions10.33 × 10.26 × 6.14 mm
L/W Ratio1.01
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
10.33 mm10.26 mm3.92 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618469455
Side View
Table 60.0%Crown 33.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 59.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £657 GBP|Low: £246 GBP|High: £2,806 GBP|Avg: £1,078 GBP|+0.6%
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
The Diamond Guys
September 17, 2026
Retailer 2£246 GBP
Retailer 10£490 GBP
Retailer 8£619 GBP
Retailer 4£644 GBP
Retailer 1£657 GBP
Retailer 11£731 GBP
Retailer 12£896 GBP
Retailer 7£1,011 GBP
Retailer 13£1,065 GBP
Retailer 5£1,071 GBP
Retailer 9£1,499 GBP
The Diamond Guys£1,545 GBP
Retailer 3£1,811 GBP
Retailer 6£2,806 GBP

2 data points across 14 retailers

4 retailers£1,071 GBP to £1,545 GBP

Retailer 1
-
£896 GBP
ZAR 19,392 ZAR
Price last confirmed 65 days ago
Retailer 2
-
£1,011 GBP
$1,354 USD
View
Price last confirmed 44 days ago
B+
Retailer 3
-
£1,071 GBP
CA$1,992 CAD
View
Most Expensive
B
The Diamond Guys
1954433948 · Oct 30
£1,545 GBP
$2,070 USD
View
3 more retailers have this diamond
Prices start from £1,071 GBPSave up to £474 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.

B+
3.92ct Round
£1,071 GBP