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Round|Lab Grown|IGI

1.27ct F VS1 Round Lab Grown Diamond

EX • F/VS1 • IGI LG851663070

Shape and cutting style on the report: Round brilliant

Certificate IGI LG851663070

Diamond specifications and retailer prices

From £151 GBP
As of November 5, 2026
Save £817 GBP (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £968 GBP at Yadav Diamonds · As of November 4, 2026
View at Yadav Diamonds

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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851663070 or 851663070. Listed at 16 retailers as of November 4, 2026, with prices from £151 to £968, a £817 spread on the same certified stone. Yadav Diamonds lists it at £968. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851663070
Dimensions6.94 × 6.90 × 4.35 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
6.94 mm6.90 mm1.27 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851663070
Side View
Table 59.0%Crown 34.9°Girdle: MediumPavilion 41.8°Culet: NoneDepth 62.9%

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 5
Current: £538 GBP|Low: £151 GBP|High: £968 GBP|Avg: £418 GBP
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
Retailer 14
Retailer 15
Yadav Diamonds
November 5, 2026
Retailer 3£151 GBP
Retailer 7£190 GBP
Retailer 14£221 GBP
Retailer 5£279 GBP
Retailer 11£281 GBP
Retailer 8£285 GBP
Retailer 6£313 GBP
Retailer 13£363 GBP
Retailer 15£386 GBP
Retailer 4£393 GBP
Retailer 2£519 GBP
Retailer 1£538 GBP
Retailer 10£545 GBP
Retailer 12£565 GBP
Retailer 9£753 GBP
Yadav Diamonds£968 GBP

6 data points across 16 retailers

16 retailers£151 GBP to £968 GBP

A
Cheapest Retailer
-
£151 GBP
A
Retailer 2
-
£190 GBP
View
B+
Retailer 3
-
£221 GBP
View
A
Retailer 4
-
£279 GBP
View
A
Retailer 5
-
£281 GBP
View
A
Retailer 6
-
£285 GBP
View
A
Retailer 7
-
£313 GBP
View
B+
Retailer 8
-
£363 GBP
View
B+
Retailer 9
-
£386 GBP
View
B+
Retailer 10
-
£393 GBP
View
B+
Retailer 11
-
£519 GBP
View
B+
Retailer 12
-
£538 GBP
View
B+
Retailer 13
-
£545 GBP
View
B
Retailer 14
-
£565 GBP
View
B
Retailer 15
-
£753 GBP
View
Most Expensive
B
Yadav Diamonds
13378773 · Nov 4
£968 GBP
$1,307 USD
View
15 more retailers have this diamond
Prices start from £151 GBPSave up to £817 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
£151 GBP