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Round|Lab Grown|IGI

1.63ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG555273694

Shape and cutting style on the report: Round brilliant

Certificate IGI LG555273694

Diamond specifications and retailer prices

From £296 GBP
$397 USD
As of October 29, 2026
Save £913 GBP (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,445 GBP at MOH London · As of October 19, 2026
View at MOH London

About this 1.63ct lab-grown round diamond

This 1.63ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG555273694 or 555273694. Listed at 14 retailers as of October 29, 2026, with a 308% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.63
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG555273694
Dimensions7.62 × 7.56 × 4.60 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
7.62 mm7.56 mm1.63 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG555273694
Side View
Table 59.5%Crown 32.9°GirdlePavilion 41.1°Culet: NoneDepth 60.5%

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 29
Current: £1,445 GBP|Low: £296 GBP|High: £1,455 GBP|Avg: £717 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 7£296 GBP
Retailer 11£331 GBP
Retailer 8£368 GBP
Retailer 5£478 GBP
Retailer 10£553 GBP
Retailer 9£584 GBP
Retailer 12£599 GBP
Retailer 2£632 GBP
Retailer 4£770 GBP
Retailer 6£1,031 GBP
Retailer 3£1,209 GBP
MOH London£1,445 GBP

21 data points across 12 retailers

14 retailers£296 GBP to £1,209 GBP

A
Cheapest Retailer
-
£296 GBP
$397 USD
A
Retailer 2
-
£331 GBP
$444 USD
View
Final sale: no returns
A
Retailer 3
-
£332 GBP
$445 USD
View
A
Retailer 4
-
£368 GBP
$493 USD
View
A
Retailer 5
-
£368 GBP
$493 USD
View
A
Retailer 6
-
£478 GBP
$640 USD
View
B+
Retailer 7
-
£553 GBP
$741 USD
View
B+
Retailer 8
-
£584 GBP
$782 USD
View
B+
Retailer 9
-
£599 GBP
$802 USD
View
B+
Retailer 10
-
£632 GBP
ZAR 13,682 ZAR
View
B
Retailer 11
-
£1,031 GBP
$1,382 USD
View
B
Retailer 12
-
£1,182 GBP
$1,584 USD
View
B
Retailer 13
-
£1,209 GBP
$1,620 USD
View
Most Expensive
MOH London
LG555273694 · Oct 19
£1,445 GBP
View
Price last confirmed 12 days ago
13 more retailers have this diamond
Prices start from £296 GBPSave up to £913 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
1.63ct Round
£296 GBP