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Round|Lab Grown|IGI

1.27ct D VS1 Round Lab Grown Diamond

EX • D/VS1 • IGI LG846634555

Shape and cutting style on the report: Round brilliant

Certificate IGI LG846634555

Diamond specifications and retailer prices

From £132 GBP
As of November 5, 2026
Save £918 GBP (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,050 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846634555 or 846634555. Listed at 22 retailers as of November 4, 2026, with prices from £132 to £1,050, a £918 spread on the same certified stone. Yadav Diamonds lists it at £1,050. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846634555
Dimensions6.92 × 6.95 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.92 mm6.95 mm1.27 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846634555
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

Caratlytics Score

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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: Nov 5
Current: £291 GBP|Low: £132 GBP|High: £1,050 GBP|Avg: £405 GBP|+3.4%
Retailer 1
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Retailer 21
Yadav Diamonds
November 5, 2026
Retailer 5£132 GBP
Retailer 2£148 GBP
Retailer 3£154 GBP
Retailer 4£164 GBP
Retailer 20£164 GBP
Retailer 9£190 GBP
Retailer 6£221 GBP
Retailer 12£275 GBP
Retailer 16£283 GBP
Retailer 1£291 GBP
Retailer 21£313 GBP
Retailer 10£350 GBP
Retailer 18£387 GBP
Retailer 19£397 GBP
Retailer 15£400 GBP
Retailer 8£528 GBP
Retailer 13£544 GBP
Retailer 14£554 GBP
Retailer 11£568 GBP
Retailer 17£767 GBP
Retailer 7£834 GBP
Yadav Diamonds£1,050 GBP

20 data points across 22 retailers

22 retailers£132 GBP to £1,050 GBP

A
Cheapest Retailer
-
£132 GBP
A
Retailer 2
-
£148 GBP
View
Final sale: no returns
A
Retailer 3
-
£154 GBP
View
Retailer 4
-
£164 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£164 GBP
View
A
Retailer 6
-
£190 GBP
View
B+
Retailer 7
-
£221 GBP
View
A
Retailer 8
-
£275 GBP
View
A
Retailer 9
-
£283 GBP
View
A
Retailer 10
-
£291 GBP
View
A
Retailer 11
-
£313 GBP
View
B+
Retailer 12
-
£350 GBP
View
B+
Retailer 13
-
£387 GBP
View
Retailer 14
-
£397 GBP
View
Price last confirmed 8 days ago
B+
Retailer 15
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£400 GBP
View
B
Retailer 16
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£528 GBP
View
B
Retailer 17
-
£544 GBP
View
B
Retailer 18
-
£554 GBP
View
B
Retailer 19
-
£568 GBP
View
B
Retailer 20
-
£767 GBP
View
B
Retailer 21
-
£834 GBP
View
Most Expensive
B
Yadav Diamonds
13338011 · Nov 4
£1,050 GBP
$1,413 USD
View
21 more retailers have this diamond
Prices start from £132 GBPSave up to £918 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
£132 GBP