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Cushion|Lab Grown|IGI

1.27ct F VVS1 Cushion Lab Grown Diamond

VG • F/VVS1 • IGI LG840634915

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634915

Diamond specifications and retailer prices

From £178 GBP
$236 USD
As of October 28, 2026
Save £1,041 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,218 GBP at Helzberg Diamonds · As of October 29, 2026
View at Helzberg Diamonds

About this 1.27ct lab-grown cushion diamond

This 1.27ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG840634915 or 840634915. Listed at 15 retailers as of October 28, 2026, with prices from £178 to £1,218, a £1,041 spread on the same certified stone. Helzberg Diamonds lists it at £1,218. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.27
Carat
F
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634915
Dimensions7.93 × 5.78 × 3.56 mm
L/W Ratio1.37
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
7.93 mm5.78 mm1.27 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634915
Side View
Table 68.0%Crown 30.9°Girdle: MED-THKPavilion 36°Culet: NoneDepth 61.6%

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 28
Current: £1,218 GBP|Low: £168 GBP|High: £1,218 GBP|Avg: £527 GBP
Helzberg Diamonds
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
October 29, 2026
Retailer 11£178 GBP
Retailer 8£242 GBP
Retailer 3£330 GBP
Retailer 12£337 GBP
Retailer 14£338 GBP
Retailer 13£361 GBP
Retailer 9£382 GBP
Retailer 15£467 GBP
Retailer 4£480 GBP
Retailer 5£639 GBP
Retailer 6£672 GBP
Retailer 10£681 GBP
Retailer 2£791 GBP
Retailer 7£1,129 GBP
Helzberg Diamonds£1,218 GBP

14 data points across 15 retailers

15 retailers£178 GBP to £1,218 GBP

A
Cheapest Retailer
-
£178 GBP
$236 USD
Final sale: no returns
A
Retailer 2
-
£242 GBP
View
A
Retailer 3
-
£330 GBP
€418 EUR
View
A
Retailer 4
-
£337 GBP
$448 USD
View
A
Retailer 5
-
£338 GBP
ZAR 7,246 ZAR
View
B+
Retailer 6
-
£361 GBP
View
A
Retailer 7
-
£382 GBP
$507 USD
View
B+
Retailer 8
-
£467 GBP
$621 USD
View
B+
Retailer 9
-
£480 GBP
A$982 AUD
View
B
Retailer 10
-
£639 GBP
SGD 1,147 SGD
View
B
Retailer 11
-
£672 GBP
$892 USD
View
B
Retailer 12
-
£681 GBP
$905 USD
View
B
Retailer 13
-
£791 GBP
View
B
Retailer 14
-
£1,129 GBP
$1,500 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJKPHL · Oct 29
£1,218 GBP
$1,619 USD
View
14 more retailers have this diamond
Prices start from £178 GBPSave up to £1,041 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 Cushion
£178 GBP