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Round|Lab Grown|IGI

3.70ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG635423063

Shape and cutting style on the report: Round brilliant

Certificate IGI LG635423063

Diamond specifications and retailer prices

From £352 GBP
$472 USD
As of October 29, 2026
Save £1,128 GBP (76%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,480 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.7ct lab-grown round diamond

This 3.7ct 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 LG635423063 or 635423063. Listed at 6 retailers as of October 29, 2026, with prices from £352 to £1,480, a £1,128 spread on the same certified stone. The Diamond Guys lists it at £1,480. 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

3.70
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635423063
Dimensions10.02 × 9.99 × 6.04 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.02 mm9.99 mm3.70 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635423063
Side View
Table 59.0%Crown 34.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.3%

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: £352 GBP|Low: £241 GBP|High: £2,679 GBP|Avg: £1,026 GBP|-3.9%
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
October 27, 2026
Retailer 1£352 GBP
Retailer 11£373 GBP
Retailer 6£499 GBP
Retailer 9£599 GBP
Retailer 3£615 GBP
Retailer 12£658 GBP
Retailer 13£857 GBP
Retailer 8£966 GBP
Retailer 2£1,027 GBP
Retailer 4£1,119 GBP
Retailer 10£1,440 GBP
The Diamond Guys£1,480 GBP
Retailer 5£1,708 GBP
Retailer 7£2,679 GBP

15 data points across 14 retailers

6 retailers£352 GBP to £1,480 GBP

A
Cheapest Retailer
-
£352 GBP
$472 USD
Final sale: no returns
B+
Retailer 2
-
£499 GBP
$668 USD
View
Retailer 3
-
£857 GBP
ZAR 18,545 ZAR
View
Price last confirmed 65 days ago
Retailer 4
-
£966 GBP
$1,295 USD
View
Price last confirmed 44 days ago
B+
Retailer 5
-
£1,119 GBP
CA$2,082 CAD
View
Most Expensive
B
The Diamond Guys
1954433975 · Oct 30
£1,480 GBP
$1,983 USD
View
5 more retailers have this diamond
Prices start from £352 GBPSave up to £1,128 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
3.70ct Round
£352 GBP