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Cushion|Lab Grown|IGI

0.77ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG666410860

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG666410860

Diamond specifications and retailer prices

From £303 GBP
As of November 3, 2026
Save £1,667 GBP (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,970 GBP at Do Amore Diamonds · As of November 3, 2026
View at Do Amore Diamonds

About this 0.77ct lab-grown cushion diamond

This 0.77ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG666410860 or 666410860. Listed at 17 retailers as of November 3, 2026, with prices from £303 to £1,970, a £1,667 spread on the same certified stone. Do Amore Diamonds lists it at £1,970. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.77
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG666410860
Dimensions5.91 × 4.92 × 3.20 mm
L/W Ratio1.20
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
5.91 mm4.92 mm0.77 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG666410860
Side View
Table 59.0%Crown 33.9°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 65.0%

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: £1,343 GBP|Low: £236 GBP|High: £1,517 GBP|Avg: £866 GBP|-0.9%
Retailer 1
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Retailer 11
Retailer 12
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Retailer 16
November 4, 2026
Retailer 8£236 GBP
Retailer 12£329 GBP
Retailer 7£353 GBP
Retailer 16£417 GBP
Retailer 9£525 GBP
Retailer 3£579 GBP
Retailer 4£693 GBP
Retailer 14£732 GBP
Retailer 5£862 GBP
Retailer 15£1,027 GBP
Retailer 10£1,104 GBP
Retailer 2£1,111 GBP
Retailer 6£1,173 GBP
Retailer 1£1,343 GBP
Retailer 11£1,405 GBP
Retailer 13£1,479 GBP

34 data points across 16 retailers

17 retailers£303 GBP to £1,970 GBP

A
Cheapest Retailer
-
£303 GBP
A
Retailer 2
-
£329 GBP
View
Final sale: no returns
A
Retailer 3
-
£353 GBP
View
A
Retailer 4
-
£417 GBP
View
A
Retailer 5
-
£525 GBP
View
A
Retailer 6
-
£579 GBP
View
Retailer 7
-
£693 GBP
View
Price last confirmed 10 days ago
B+
Retailer 8
-
£732 GBP
View
B+
Retailer 9
-
£862 GBP
View
B
Retailer 10
-
£1,027 GBP
View
B+
Retailer 11
-
£1,104 GBP
View
B+
Retailer 12
-
£1,111 GBP
View
Retailer 13
-
£1,173 GBP
View
Price last confirmed 16 days ago
B
Retailer 14
-
£1,343 GBP
View
B
Retailer 15
-
£1,405 GBP
View
B
Retailer 16
-
£1,479 GBP
View
Most Expensive
B
Do Amore Diamonds
32-LG666410860 · Nov 3
£1,970 GBP
$2,660 USD
View
16 more retailers have this diamond
Prices start from £303 GBPSave up to £1,667 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
0.77ct Cushion
£303 GBP