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Cushion|Lab Grown|IGI

1.90ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG675592990

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG675592990

Diamond specifications and retailer prices

From $459 USD
As of October 30, 2026
Save $3,381 USD (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,840 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.9ct lab-grown cushion diamond

This 1.9ct 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 LG675592990 or 675592990. Listed at 22 retailers as of October 30, 2026, with prices from $459 to $3,840, a $3,381 spread on the same certified stone. Brilliant Earth lists it at $3,840. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.90
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.2°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675592990
Dimensions8.73 × 6.63 × 4.41 mm
L/W Ratio1.32
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
8.73 mm6.63 mm1.90 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675592990
Side View
Table 61.0%Crown 31.2°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 66.5%

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: Oct 30
Current: $3,840 USD|Low: $459 USD|High: $4,640 USD|Avg: $1,747 USD|-17.2%
Brilliant Earth
Retailer 2
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Retailer 4
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Retailer 6
Retailer 7
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Retailer 12
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Retailer 20
October 30, 2026
Retailer 8$459 USD
Retailer 5$508 USD
Retailer 3$597 USD
Retailer 18$691 USD
Retailer 17$730 USD
Retailer 4$766 USD
Retailer 2$804 USD
Retailer 13$929 USD
Retailer 16$965 USD
Retailer 20$1,228 USD
Retailer 14$1,307 USD
Retailer 7$1,855 USD
Retailer 10$1,885 USD
Retailer 11$1,953 USD
Retailer 9$1,983 USD
Retailer 15$2,073 USD
Retailer 12$2,332 USD
Retailer 19$3,145 USD
Retailer 6$3,640 USD
Brilliant Earth$3,840 USD

29 data points across 20 retailers

22 retailers$459 USD to $3,840 USD

A
Cheapest Retailer
-
$459 USD
Final sale: no returns
A
Retailer 2
-
$508 USD
View
Retailer 3
-
$597 USD
£470 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
$691 USD
HK$5,400 HKD
View
A
Retailer 5
-
$730 USD
View
A
Retailer 6
-
$766 USD
View
A
Retailer 7
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$804 USD
View
A
Retailer 8
-
$929 USD
£731 GBP
View
A
Retailer 9
-
$965 USD
ZAR 15,582 ZAR
View
A
Retailer 10
-
$1,228 USD
View
A
Retailer 11
-
$1,307 USD
A$2,011 AUD
View
B+
Retailer 12
-
$1,855 USD
View
A
Retailer 13
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$1,885 USD
View
B+
Retailer 14
-
$1,953 USD
View
B+
Retailer 15
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$1,983 USD
SGD 2,680 SGD
View
B+
Retailer 16
-
$2,073 USD
£1,632 GBP
View
Retailer 17
-
$2,332 USD
£1,836 GBP
View
Price last confirmed 15 days ago
Retailer 18
-
$3,145 USD
View
Price last confirmed 9 days ago
B
Retailer 19
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$3,556 USD
£2,800 GBP
View
Retailer 20
-
$3,579 USD
View
Price last confirmed 81 days ago
B
Retailer 21
-
$3,640 USD
View
Most Expensive
B
Brilliant Earth
20152130Y · Oct 30
$3,840 USD
View
21 more retailers have this diamond
Prices start from $459 USDSave up to $3,381 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
1.90ct Cushion
$459 USD