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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 $578 USD
As of October 30, 2026
Save $3,562 USD (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,140 USD at Do Amore Diamonds · As of October 29, 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 29, 2026, with prices from $578 to $4,140, a $3,562 spread on the same certified stone. Do Amore Diamonds lists it at $4,140. 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
Color
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: $4,140 USD|Low: $578 USD|High: $4,570 USD|Avg: $2,084 USD|-9.4%
Do Amore Diamonds
Retailer 2
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October 30, 2026
Retailer 7$578 USD
Retailer 16$677 USD
Retailer 3$806 USD
Retailer 22$829 USD
Retailer 21$835 USD
Retailer 4$900 USD
Retailer 18$984 USD
Retailer 17$989 USD
Retailer 20$1,097 USD
Retailer 6$1,227 USD
Retailer 13$1,486 USD
Retailer 10$1,497 USD
Retailer 5$2,032 USD
Retailer 15$2,042 USD
Retailer 8$2,163 USD
Retailer 11$2,193 USD
Retailer 9$2,327 USD
Retailer 19$2,678 USD
Retailer 14$3,275 USD
Retailer 12$3,285 USD
Retailer 2$3,880 USD
Do Amore Diamonds$4,140 USD

31 data points across 22 retailers

22 retailers$578 USD to $4,140 USD

A
Cheapest Retailer
-
$578 USD
Final sale: no returns
A
Retailer 2
-
$677 USD
£533 GBP
View
A
Retailer 3
-
$806 USD
HK$6,300 HKD
View
A
Retailer 4
-
$829 USD
View
A
Retailer 5
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$835 USD
View
A
Retailer 6
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$900 USD
View
A
Retailer 7
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$984 USD
€937 EUR
View
A
Retailer 8
-
$989 USD
£779 GBP
View
A
Retailer 9
-
$1,097 USD
ZAR 17,721 ZAR
View
A
Retailer 10
-
$1,227 USD
View
A
Retailer 11
-
$1,486 USD
A$2,286 AUD
View
A
Retailer 12
-
$1,497 USD
View
B+
Retailer 13
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$2,032 USD
View
B+
Retailer 14
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$2,163 USD
View
B+
Retailer 15
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$2,193 USD
View
B+
Retailer 16
-
$2,327 USD
SGD 3,144 SGD
View
B+
Retailer 17
-
$2,678 USD
£2,109 GBP
View
Retailer 18
-
$3,275 USD
A$5,038 AUD
View
Price last confirmed 22 days ago
Retailer 19
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$3,285 USD
View
Price last confirmed 9 days ago
B
Retailer 20
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$3,563 USD
View
B
Retailer 21
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$3,880 USD
View
Most Expensive
B
Do Amore Diamonds
27-31D54E773 · Oct 29
$4,140 USD
View
21 more retailers have this diamond
Prices start from $578 USDSave up to $3,562 USD

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
$578 USD