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Cushion|Lab Grown|IGI

1.89ct F IF Cushion Lab Grown Diamond

EX • F/IF • IGI LG825681569

Shape and cutting style on the report: Cushion mixed cut

Certificate IGI LG825681569

Diamond specifications and retailer prices

From £539 GBP
$723 USD
As of November 1, 2026
Save £3,686 GBP (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,225 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.89ct lab-grown cushion diamond

This 1.89ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825681569 or 825681569. Listed at 15 retailers as of November 1, 2026, with prices from £539 to £4,225, a £3,686 spread on the same certified stone. Do Amore Diamonds lists it at £4,225. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle49.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825681569
Dimensions8.45 × 5.78 × 3.90 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.45 mm5.78 mm1.89 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825681569
Side View
Table 64.0%Crown 40.3°Girdle: STK-THKPavilion 49.3°Culet: LargeDepth 67.5%

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: £4,225 GBP|Low: £493 GBP|High: £4,225 GBP|Avg: £1,491 GBP|+14.1%
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
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Retailer 15
November 2, 2026
Retailer 11£539 GBP
Retailer 5£552 GBP
Retailer 13£682 GBP
Retailer 4£872 GBP
Retailer 3£937 GBP
Retailer 8£969 GBP
Retailer 10£1,121 GBP
Retailer 9£1,518 GBP
Retailer 2£1,724 GBP
Retailer 14£1,759 GBP
Retailer 15£1,897 GBP
Retailer 6£1,918 GBP
Retailer 7£2,184 GBP
Retailer 12£2,397 GBP
Do Amore Diamonds£4,225 GBP

38 data points across 15 retailers

15 retailers£539 GBP to £4,225 GBP

A
Cheapest Retailer
-
£539 GBP
$723 USD
Final sale: no returns
Retailer 2
-
£552 GBP
$741 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
£682 GBP
$915 USD
View
A
Retailer 4
-
£872 GBP
$1,170 USD
View
A
Retailer 5
-
£937 GBP
$1,258 USD
View
A
Retailer 6
-
£969 GBP
View
A
Retailer 7
-
£1,121 GBP
ZAR 24,292 ZAR
View
B+
Retailer 8
-
£1,518 GBP
A$3,134 AUD
View
B+
Retailer 9
-
£1,724 GBP
View
B+
Retailer 10
-
£1,759 GBP
$2,360 USD
View
B+
Retailer 11
-
£1,897 GBP
View
B+
Retailer 12
-
£1,918 GBP
$2,574 USD
View
B+
Retailer 13
-
£2,184 GBP
$2,930 USD
View
Retailer 14
-
£2,397 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Do Amore Diamonds
27-5271EBE51 · Nov 2
£4,225 GBP
$5,670 USD
View
14 more retailers have this diamond
Prices start from £539 GBPSave up to £3,686 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
1.89ct Cushion
£539 GBP