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Round|Lab Grown|IGI

1.40ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG665403307

Shape and cutting style on the report: Round brilliant

Certificate IGI LG665403307

Diamond specifications and retailer prices

From £146 GBP
$196 USD
As of October 25, 2026
Save £1,108 GBP (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,254 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.4ct lab-grown round diamond

This 1.4ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665403307 or 665403307. Listed at 16 retailers as of October 25, 2026, with prices from £146 to £1,254, a £1,108 spread on the same certified stone. Do Amore Diamonds lists it at £1,254. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665403307
Dimensions7.17 × 7.13 × 4.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.17 mm7.13 mm1.40 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665403307
Side View
Table 56.0%Crown 35.3°Girdle: MediumPavilion 41°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
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 25
Current: £1,254 GBP|Low: £113 GBP|High: £1,254 GBP|Avg: £480 GBP
Do Amore Diamonds
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
October 30, 2026
Retailer 13£146 GBP
Retailer 12£288 GBP
Retailer 3£300 GBP
Retailer 8£307 GBP
Retailer 2£328 GBP
Retailer 14£352 GBP
Retailer 6£362 GBP
Retailer 5£398 GBP
Retailer 9£436 GBP
Retailer 10£440 GBP
Retailer 11£549 GBP
Retailer 4£703 GBP
Retailer 7£839 GBP
Do Amore Diamonds£1,254 GBP

27 data points across 14 retailers

16 retailers£146 GBP to £1,254 GBP

A
Cheapest Retailer
-
£146 GBP
$196 USD
Final sale: no returns
A
Retailer 2
-
£162 GBP
$217 USD
View
Retailer 3
-
£162 GBP
$217 USD
View
Price last confirmed 28 days ago
B+
Retailer 4
-
£288 GBP
$386 USD
View
A
Retailer 5
-
£300 GBP
$402 USD
View
A
Retailer 6
-
£307 GBP
ZAR 6,635 ZAR
View
A
Retailer 7
-
£328 GBP
View
A
Retailer 8
-
£352 GBP
$472 USD
View
A
Retailer 9
-
£436 GBP
A$898 AUD
View
A
Retailer 10
-
£440 GBP
$590 USD
View
B+
Retailer 11
-
£549 GBP
$736 USD
View
B+
Retailer 12
-
£574 GBP
$769 USD
View
Retailer 13
-
£574 GBP
$769 USD
View
Price last confirmed 30 days ago
B+
Retailer 14
-
£703 GBP
$942 USD
View
B+
Retailer 15
-
£839 GBP
View
Most Expensive
B
Do Amore Diamonds
27-0E42687CD · Oct 30
£1,254 GBP
$1,680 USD
View
15 more retailers have this diamond
Prices start from £146 GBPSave up to £1,108 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
1.40ct Round
£146 GBP