Round|Lab Grown|IGI

1.27ct E VS1 Round Lab Grown Diamond

ID • E/VS1 • IGI LG794629391

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794629391

Diamond specifications and retailer prices

From £151 GBP
$201 USD
As of October 29, 2026
Save £747 GBP (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,564 GBP at Queensmith · As of October 27, 2026
View at Queensmith

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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG794629391 or 794629391. Listed at 25 retailers as of October 29, 2026, with a 495% 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

1.27
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794629391
Dimensions6.99 × 7.03 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.99 mm7.03 mm1.27 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794629391
Side View
Table 57.0%Crown 32.9°Girdle: MediumPavilion 41°Culet: NoneDepth 60.7%

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 29
Current: £342 GBP|Low: £145 GBP|High: £884 GBP|Avg: £380 GBP|+6.5%
Retailer 1
Retailer 2
Retailer 3
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Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 30, 2026
Retailer 2£151 GBP
Retailer 3£168 GBP
Retailer 6£175 GBP
Retailer 4£187 GBP
Retailer 17£187 GBP
Retailer 7£252 GBP
Retailer 10£313 GBP
Retailer 15£313 GBP
Retailer 12£321 GBP
Retailer 1£342 GBP
Retailer 9£372 GBP
Retailer 14£387 GBP
Retailer 13£456 GBP
Retailer 16£482 GBP
Retailer 5£601 GBP
Retailer 8£803 GBP
Retailer 11£878 GBP

38 data points across 17 retailers

25 retailers£151 GBP to £898 GBP

A
Cheapest Retailer
-
£151 GBP
$201 USD
A
Retailer 2
-
£168 GBP
$224 USD
View
Final sale: no returns
A
Retailer 3
-
£175 GBP
$233 USD
View
A
Retailer 4
-
£187 GBP
$249 USD
View
A
Retailer 5
-
£187 GBP
$249 USD
View
A
Retailer 6
-
£211 GBP
HK$2,200 HKD
View
B+
Retailer 7
-
£252 GBP
$335 USD
View
A
Retailer 8
-
£313 GBP
€397 EUR
View
Retailer 9
-
£313 GBP
View
Price last confirmed 13 days ago
A
Retailer 10
-
£321 GBP
ZAR 6,900 ZAR
View
A
Retailer 11
-
£324 GBP
$431 USD
View
B+
Retailer 12
-
£342 GBP
View
B+
Retailer 13
-
£372 GBP
$496 USD
View
Retailer 14
-
£387 GBP
$515 USD
View
Price last confirmed 12 days ago
B+
Retailer 15
-
£456 GBP
A$935 AUD
View
B+
Retailer 16
-
£482 GBP
$642 USD
View
Retailer 17
-
£547 GBP
$729 USD
View
Price last confirmed 28 days ago
B
Retailer 18
-
£601 GBP
$800 USD
View
B
Retailer 19
-
£607 GBP
SGD 1,092 SGD
View
B
Retailer 20
-
£634 GBP
$844 USD
View
B
Retailer 21
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£641 GBP
$853 USD
View
B
Retailer 22
-
£803 GBP
$1,070 USD
View
B
Retailer 23
-
£878 GBP
View
B
Retailer 24
-
£898 GBP
$1,195 USD
View
Most Expensive
Queensmith
LG794629391 · Oct 27
£1,564 GBP
View
Price under review
24 more retailers have this diamond
Prices start from £151 GBPSave up to £747 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