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Cushion|Lab Grown|IGI

1.56ct G IF Cushion Lab Grown Diamond

EX • G/IF • IGI LG611370161

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG611370161

Diamond specifications and retailer prices

From £676 GBP
As of November 3, 2026
Save £2,757 GBP (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,319 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.56ct lab-grown cushion diamond

This 1.56ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG611370161 or 611370161. Listed at 16 retailers as of November 3, 2026, with a 408% 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

1.56
Carat
G
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG611370161
Dimensions6.82 × 6.74 × 4.58 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 Faint Blue
Top View
6.82 mm6.74 mm1.56 ctG / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG611370161
Side View
Table 61.0%Crown 33.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 68.0%

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: Nov 3
Current: £6,319 GBP|Low: £676 GBP|High: £6,319 GBP|Avg: £2,132 GBP
Do Amore 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
November 5, 2026
Retailer 11£676 GBP
Retailer 5£856 GBP
Retailer 9£1,004 GBP
Retailer 15£1,084 GBP
Retailer 7£1,250 GBP
Retailer 3£1,489 GBP
Retailer 10£1,490 GBP
Retailer 12£1,777 GBP
Retailer 4£1,948 GBP
Retailer 14£2,410 GBP
Retailer 6£2,477 GBP
Retailer 13£2,664 GBP
Retailer 2£3,096 GBP
Retailer 8£3,433 GBP
Do Amore Diamonds£6,319 GBP

39 data points across 15 retailers

16 retailers£676 GBP to £3,433 GBP

A
Cheapest Retailer
-
£676 GBP
A
Retailer 2
-
£856 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,004 GBP
View
A
Retailer 4
-
£1,084 GBP
View
B+
Retailer 5
-
£1,250 GBP
View
Retailer 6
-
£1,489 GBP
View
Price last confirmed 17 days ago
B+
Retailer 7
-
£1,490 GBP
View
B+
Retailer 8
-
£1,777 GBP
View
B
Retailer 9
-
£1,948 GBP
View
B
Retailer 10
-
£2,230 GBP
View
B
Retailer 11
-
£2,410 GBP
View
B
Retailer 12
-
£2,477 GBP
View
B
Retailer 13
-
£2,664 GBP
View
B
Retailer 14
-
£3,096 GBP
View
B
Retailer 15
-
£3,433 GBP
View
Most Expensive
Do Amore Diamonds
32-LG611370161 · Nov 4
£6,319 GBP
$8,530 USD
View
Price under review
15 more retailers have this diamond
Prices start from £676 GBPSave up to £2,757 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
1.56ct Cushion
£676 GBP