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Round|Lab Grown|IGI

1.27ct E VS1 Round Lab Grown Diamond

ID • E/VS1 • IGI LG786634273

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786634273

Diamond specifications and retailer prices

From £150 GBP
$201 USD
As of October 29, 2026
Save £742 GBP (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,554 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 LG786634273 or 786634273. 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 angle34.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786634273
Dimensions6.97 × 7.05 × 4.31 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.97 mm7.05 mm1.27 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786634273
Side View
Table 57.0%Crown 34.1°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.5%

Caratlytics Score

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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: £340 GBP|Low: £144 GBP|High: £879 GBP|Avg: £370 GBP|+6.5%
Retailer 1
Retailer 2
Retailer 3
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Retailer 11
Retailer 12
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Retailer 17
October 30, 2026
Retailer 16£150 GBP
Retailer 9£167 GBP
Retailer 14£174 GBP
Retailer 4£186 GBP
Retailer 5£186 GBP
Retailer 6£250 GBP
Retailer 10£311 GBP
Retailer 3£312 GBP
Retailer 12£319 GBP
Retailer 1£340 GBP
Retailer 8£370 GBP
Retailer 17£384 GBP
Retailer 13£454 GBP
Retailer 15£479 GBP
Retailer 2£597 GBP
Retailer 7£799 GBP
Retailer 11£873 GBP

36 data points across 17 retailers

25 retailers£150 GBP to £892 GBP

A
Cheapest Retailer
-
£150 GBP
$201 USD
A
Retailer 2
-
£167 GBP
$224 USD
View
Final sale: no returns
A
Retailer 3
-
£174 GBP
$233 USD
View
A
Retailer 4
-
£186 GBP
$249 USD
View
A
Retailer 5
-
£186 GBP
$249 USD
View
A
Retailer 6
-
£210 GBP
HK$2,200 HKD
View
B+
Retailer 7
-
£250 GBP
$335 USD
View
A
Retailer 8
-
£311 GBP
€397 EUR
View
Retailer 9
-
£312 GBP
View
Price last confirmed 13 days ago
A
Retailer 10
-
£319 GBP
ZAR 6,900 ZAR
View
A
Retailer 11
-
£322 GBP
$431 USD
View
B+
Retailer 12
-
£340 GBP
View
B+
Retailer 13
-
£370 GBP
$496 USD
View
Retailer 14
-
£384 GBP
$515 USD
View
Price last confirmed 12 days ago
B+
Retailer 15
-
£454 GBP
A$935 AUD
View
B+
Retailer 16
-
£479 GBP
$642 USD
View
Retailer 17
-
£544 GBP
$729 USD
View
Price last confirmed 45 days ago
B
Retailer 18
-
£597 GBP
$800 USD
View
B
Retailer 19
-
£603 GBP
SGD 1,092 SGD
View
B
Retailer 20
-
£630 GBP
$844 USD
View
B
Retailer 21
-
£637 GBP
$853 USD
View
B
Retailer 22
-
£799 GBP
$1,070 USD
View
B
Retailer 23
-
£873 GBP
View
B
Retailer 24
-
£892 GBP
$1,195 USD
View
Most Expensive
Queensmith
LG786634273 · Oct 27
£1,554 GBP
View
Price under review
24 more retailers have this diamond
Prices start from £150 GBPSave up to £742 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
£150 GBP