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Cushion|Lab Grown|IGI

1.27ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG840632227

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840632227

Diamond specifications and retailer prices

From £280 GBP
$375 USD
As of October 30, 2026
Save £1,260 GBP (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,540 GBP at Helzberg Diamonds · As of October 31, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840632227 or 840632227. Listed at 16 retailers as of October 30, 2026, with prices from £280 to £1,540, a £1,260 spread on the same certified stone. Helzberg Diamonds lists it at £1,540. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632227
Dimensions7.92 × 5.50 × 3.66 mm
L/W Ratio1.44
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
7.92 mm5.50 mm1.27 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632227
Side View
Table 65.0%Crown 36°Girdle: MED-STKPavilion 35°Culet: NoneDepth 66.5%

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: £1,540 GBP|Low: £280 GBP|High: £1,649 GBP|Avg: £800 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
November 1, 2026
Retailer 7£280 GBP
Retailer 3£321 GBP
Retailer 15£470 GBP
Retailer 5£494 GBP
Retailer 9£500 GBP
Retailer 6£501 GBP
Retailer 14£532 GBP
Retailer 2£550 GBP
Retailer 16£646 GBP
Retailer 12£752 GBP
Retailer 8£990 GBP
Retailer 4£1,028 GBP
Retailer 13£1,168 GBP
Retailer 11£1,248 GBP
Retailer 10£1,388 GBP
Helzberg Diamonds£1,540 GBP

19 data points across 16 retailers

16 retailers£280 GBP to £1,540 GBP

A
Cheapest Retailer
-
£280 GBP
$375 USD
Final sale: no returns
Retailer 2
-
£321 GBP
View
Price last confirmed 15 days ago
A
Retailer 3
-
£470 GBP
$630 USD
View
A
Retailer 4
-
£494 GBP
$662 USD
View
A
Retailer 5
-
£500 GBP
€638 EUR
View
A
Retailer 6
-
£501 GBP
$671 USD
View
A
Retailer 7
-
£532 GBP
ZAR 11,523 ZAR
View
A
Retailer 8
-
£550 GBP
View
A
Retailer 9
-
£646 GBP
$866 USD
View
A
Retailer 10
-
£752 GBP
A$1,551 AUD
View
B+
Retailer 11
-
£990 GBP
SGD 1,792 SGD
View
B+
Retailer 12
-
£1,028 GBP
$1,378 USD
View
B+
Retailer 13
-
£1,168 GBP
$1,565 USD
View
B+
Retailer 14
-
£1,248 GBP
View
B+
Retailer 15
-
£1,388 GBP
$1,860 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJIIIN · Oct 31
£1,540 GBP
$2,063 USD
View
15 more retailers have this diamond
Prices start from £280 GBPSave up to £1,260 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
£280 GBP