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Cushion|Lab Grown|IGI

1.91ct D IF Cushion Lab Grown Diamond

GD • D/IF • IGI LG841678154

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG841678154

Diamond specifications and retailer prices

From £487 GBP
As of November 1, 2026
Save £2,499 GBP (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,985 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.91ct lab-grown cushion diamond

This 1.91ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG841678154 or 841678154. Listed at 15 retailers as of October 31, 2026, with prices from £487 to £2,985, a £2,499 spread on the same certified stone. Do Amore Diamonds lists it at £2,985. 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

1.91
Carat
D
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841678154
Dimensions9.33 × 6.11 × 4.12 mm
L/W Ratio1.53
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
9.33 mm6.11 mm1.91 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841678154
Side View
Table 59.0%Crown 33.8°Girdle: THK-VTKPavilion 34.6°Culet: NoneDepth 67.4%

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 1
Current: £2,985 GBP|Low: £487 GBP|High: £8,279 GBP|Avg: £1,717 GBP|-19.5%
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
Retailer 16
November 1, 2026
Retailer 9£487 GBP
Retailer 12£522 GBP
Retailer 15£539 GBP
Retailer 16£653 GBP
Retailer 10£717 GBP
Retailer 4£946 GBP
Retailer 14£1,072 GBP
Retailer 3£1,209 GBP
Retailer 2£1,921 GBP
Retailer 7£2,105 GBP
Retailer 8£2,316 GBP
Retailer 6£2,362 GBP
Retailer 11£2,513 GBP
Retailer 5£2,659 GBP
Retailer 13£2,881 GBP
Do Amore Diamonds£2,985 GBP

24 data points across 16 retailers

15 retailers£487 GBP to £2,985 GBP

A
Cheapest Retailer
-
£487 GBP
A
Retailer 2
-
£522 GBP
$700 USD
View
A
Retailer 3
-
£539 GBP
$722 USD
View
A
Retailer 4
-
£653 GBP
$875 USD
View
A
Retailer 5
-
£717 GBP
€915 EUR
View
A
Retailer 6
-
£946 GBP
$1,268 USD
View
B+
Retailer 7
-
£1,072 GBP
A$2,209 AUD
View
B+
Retailer 8
-
£1,209 GBP
$1,621 USD
View
B
Retailer 9
-
£1,921 GBP
View
Retailer 10
-
£2,105 GBP
$2,820 USD
View
Price last confirmed 16 days ago
Retailer 11
-
£2,362 GBP
$3,165 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
£2,513 GBP
A$5,181 AUD
View
B
Retailer 13
-
£2,659 GBP
$3,563 USD
View
B
Retailer 14
-
£2,881 GBP
$3,860 USD
View
Most Expensive
B
Do Amore Diamonds
27-48A7540F9 · Oct 31
£2,985 GBP
$4,000 USD
View
14 more retailers have this diamond
Prices start from £487 GBPSave up to £2,499 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
1.91ct Cushion
£487 GBP