CaratHunter
Plans
Cushion|Lab Grown|IGI

1.26ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG840622306

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840622306

Diamond specifications and retailer prices

From £278 GBP
$372 USD
As of October 30, 2026
Save £1,252 GBP (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,530 GBP at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.26ct lab-grown cushion diamond

This 1.26ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840622306 or 840622306. Listed at 17 retailers as of October 30, 2026, with prices from £278 to £1,530, a £1,252 spread on the same certified stone. Helzberg Diamonds lists it at £1,530. 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

1.26
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840622306
Dimensions7.71 × 5.45 × 3.64 mm
L/W Ratio1.41
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
7.71 mm5.45 mm1.26 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840622306
Side View
Table 60.0%Crown 34.3°Girdle: STK-THKPavilion 34°Culet: NoneDepth 66.8%

Caratlytics Score

How it works →
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: Oct 30
Current: £1,530 GBP|Low: £278 GBP|High: £1,634 GBP|Avg: £770 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
Retailer 16
Retailer 17
October 31, 2026
Retailer 6£278 GBP
Retailer 7£318 GBP
Retailer 17£466 GBP
Retailer 5£491 GBP
Retailer 2£497 GBP
Retailer 4£497 GBP
Retailer 16£529 GBP
Retailer 10£551 GBP
Retailer 3£637 GBP
Retailer 14£747 GBP
Retailer 11£761 GBP
Retailer 8£985 GBP
Retailer 9£1,021 GBP
Retailer 15£1,164 GBP
Retailer 13£1,239 GBP
Retailer 12£1,381 GBP
Helzberg Diamonds£1,530 GBP

16 data points across 17 retailers

17 retailers£278 GBP to £1,530 GBP

A
Cheapest Retailer
-
£278 GBP
$372 USD
Final sale: no returns
Retailer 2
-
£318 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
£466 GBP
$625 USD
View
A
Retailer 4
-
£491 GBP
$658 USD
View
A
Retailer 5
-
£497 GBP
€634 EUR
View
A
Retailer 6
-
£497 GBP
$666 USD
View
A
Retailer 7
-
£529 GBP
ZAR 11,440 ZAR
View
A
Retailer 8
-
£551 GBP
View
A
Retailer 9
-
£637 GBP
$854 USD
View
B+
Retailer 10
-
£747 GBP
A$1,540 AUD
View
B+
Retailer 11
-
£761 GBP
$1,020 USD
View
B
Retailer 12
-
£985 GBP
SGD 1,784 SGD
View
B+
Retailer 13
-
£1,021 GBP
$1,369 USD
View
B
Retailer 14
-
£1,164 GBP
$1,560 USD
View
B
Retailer 15
-
£1,239 GBP
View
B
Retailer 16
-
£1,381 GBP
$1,850 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMIIJGM · Oct 31
£1,530 GBP
$2,050 USD
View
16 more retailers have this diamond
Prices start from £278 GBPSave up to £1,252 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
1.26ct Cushion
£278 GBP