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Cushion|Lab Grown|IGI

1.89ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG754507671

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG754507671

Diamond specifications and retailer prices

From £431 GBP
$578 USD
As of October 30, 2026
Save £2,658 GBP (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,090 GBP at Do Amore Diamonds · As of October 31, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754507671 or 754507671. Listed at 22 retailers as of October 30, 2026, with prices from £431 to £3,090, a £2,658 spread on the same certified stone. Do Amore Diamonds lists it at £3,090. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754507671
Dimensions6.68 × 6.68 × 4.52 mm
L/W Ratio1.00
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
6.68 mm6.68 mm1.89 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754507671
Side View
Table 62.0%Crown 35°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 67.7%

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: Oct 30
Current: £3,090 GBP|Low: £431 GBP|High: £3,411 GBP|Avg: £1,547 GBP|-9.4%
Do Amore Diamonds
Retailer 2
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October 31, 2026
Retailer 7£431 GBP
Retailer 18£505 GBP
Retailer 13£537 GBP
Retailer 3£602 GBP
Retailer 22£619 GBP
Retailer 4£672 GBP
Retailer 2£730 GBP
Retailer 19£738 GBP
Retailer 21£819 GBP
Retailer 6£916 GBP
Retailer 17£1,109 GBP
Retailer 10£1,117 GBP
Retailer 5£1,516 GBP
Retailer 15£1,524 GBP
Retailer 8£1,614 GBP
Retailer 11£1,637 GBP
Retailer 9£1,736 GBP
Retailer 20£1,999 GBP
Retailer 14£2,444 GBP
Retailer 12£2,452 GBP
Retailer 16£2,896 GBP
Do Amore Diamonds£3,090 GBP

32 data points across 22 retailers

22 retailers£431 GBP to £3,090 GBP

A
Cheapest Retailer
-
£431 GBP
$578 USD
Final sale: no returns
A
Retailer 2
-
£505 GBP
View
A
Retailer 3
-
£537 GBP
$720 USD
View
A
Retailer 4
-
£602 GBP
HK$6,300 HKD
View
A
Retailer 5
-
£619 GBP
$829 USD
View
A
Retailer 6
-
£672 GBP
$900 USD
View
A
Retailer 7
-
£730 GBP
€931 EUR
View
A
Retailer 8
-
£738 GBP
View
A
Retailer 9
-
£819 GBP
ZAR 17,721 ZAR
View
A
Retailer 10
-
£916 GBP
$1,227 USD
View
A
Retailer 11
-
£1,109 GBP
A$2,286 AUD
View
A
Retailer 12
-
£1,117 GBP
$1,497 USD
View
B+
Retailer 13
-
£1,516 GBP
$2,032 USD
View
B+
Retailer 14
-
£1,614 GBP
$2,163 USD
View
B+
Retailer 15
-
£1,637 GBP
$2,193 USD
View
B+
Retailer 16
-
£1,736 GBP
SGD 3,144 SGD
View
B+
Retailer 17
-
£1,999 GBP
View
Retailer 18
-
£2,444 GBP
A$5,038 AUD
View
Price last confirmed 23 days ago
Retailer 19
-
£2,452 GBP
$3,285 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
£2,659 GBP
$3,563 USD
View
B
Retailer 21
-
£2,896 GBP
$3,880 USD
View
Most Expensive
B
Do Amore Diamonds
27-31D54E773 · Oct 31
£3,090 GBP
$4,140 USD
View
21 more retailers have this diamond
Prices start from £431 GBPSave up to £2,658 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
£431 GBP