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Round|Lab Grown|IGI

1.27ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG804642604

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804642604

Diamond specifications and retailer prices

From £133 GBP
$178 USD
As of November 1, 2026
Save £639 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £771 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG804642604 or 804642604. Listed at 19 retailers as of October 29, 2026, with prices from £133 to £771, a £639 spread on the same certified stone. MOH London lists it at £771. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804642604
Dimensions6.88 × 6.94 × 4.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.88 mm6.94 mm1.27 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804642604
Side View
Table 57.0%Crown 34.8°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

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: Nov 1
Current: £771 GBP|Low: £127 GBP|High: £776 GBP|Avg: £363 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11£133 GBP
Retailer 12£164 GBP
Retailer 9£283 GBP
Retailer 3£291 GBP
Retailer 6£294 GBP
Retailer 5£305 GBP
Retailer 4£350 GBP
Retailer 10£395 GBP
Retailer 7£400 GBP
Retailer 2£418 GBP
Retailer 8£529 GBP
MOH London£771 GBP

44 data points across 12 retailers

19 retailers£133 GBP to £771 GBP

A
Cheapest Retailer
-
£133 GBP
$178 USD
A
Retailer 2
-
£154 GBP
$206 USD
View
Retailer 3
-
£164 GBP
$220 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
£164 GBP
$220 USD
View
A
Retailer 5
-
£283 GBP
ZAR 6,141 ZAR
View
A
Retailer 6
-
£291 GBP
$391 USD
View
A
Retailer 7
-
£294 GBP
View
A
Retailer 8
-
£305 GBP
€390 EUR
View
A
Retailer 9
-
£316 GBP
$424 USD
View
B+
Retailer 10
-
£350 GBP
$470 USD
View
B+
Retailer 11
-
£395 GBP
$530 USD
View
B+
Retailer 12
-
£400 GBP
A$826 AUD
View
B+
Retailer 13
-
£418 GBP
$561 USD
View
Retailer 14
-
£504 GBP
$676 USD
View
Price last confirmed 31 days ago
B
Retailer 15
-
£528 GBP
$708 USD
View
B+
Retailer 16
-
£529 GBP
$710 USD
View
B
Retailer 17
-
£568 GBP
$762 USD
View
B
Retailer 18
-
£590 GBP
$792 USD
View
Most Expensive
B
MOH London
LG804642604 · Oct 29
£771 GBP
View
18 more retailers have this diamond
Prices start from £133 GBPSave up to £639 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
1.27ct Round
£133 GBP