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Cushion|Lab Grown|IGI

1.89ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG839647791

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG839647791

Diamond specifications and retailer prices

From $606 USD
As of October 27, 2026
Save $4,364 USD (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,970 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839647791 or 839647791. Listed at 19 retailers as of October 27, 2026, with prices from $606 to $4,970, a $4,364 spread on the same certified stone. Brilliant Earth lists it at $4,970. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839647791
Dimensions8.72 × 6.26 × 3.95 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.72 mm6.26 mm1.89 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839647791
Side View
Table 66.0%Crown 33.6°Girdle: MED-THKPavilion 32.8°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
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 27
Current: $4,970 USD|Low: $606 USD|High: $4,970 USD|Avg: $1,827 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 9$606 USD
Retailer 3$695 USD
Retailer 17$730 USD
Retailer 6$810 USD
Retailer 2$973 USD
Retailer 4$1,037 USD
Retailer 14$1,040 USD
Retailer 16$1,144 USD
Retailer 18$1,573 USD
Retailer 8$1,607 USD
Retailer 5$1,951 USD
Retailer 13$2,099 USD
Retailer 7$2,162 USD
Retailer 11$2,180 USD
Retailer 10$2,283 USD
Retailer 15$2,807 USD
Retailer 12$2,915 USD
Retailer 19$2,915 USD
Brilliant Earth$4,970 USD

23 data points across 19 retailers

19 retailers$606 USD to $4,970 USD

A
Cheapest Retailer
-
$606 USD
Final sale: no returns
A
Retailer 2
-
$695 USD
£547 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
$730 USD
HK$5,700 HKD
View
A
Retailer 4
-
$810 USD
View
A
Retailer 5
-
$973 USD
€927 EUR
View
A
Retailer 6
-
$1,037 USD
View
A
Retailer 7
-
$1,040 USD
£819 GBP
View
A
Retailer 8
-
$1,144 USD
ZAR 18,478 ZAR
View
A
Retailer 9
-
$1,573 USD
A$2,420 AUD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$1,607 USD
View
B+
Retailer 11
-
$1,951 USD
£1,536 GBP
View
B+
Retailer 12
-
$2,099 USD
SGD 2,837 SGD
View
B+
Retailer 13
-
$2,162 USD
View
B+
Retailer 14
-
$2,180 USD
View
B+
Retailer 15
-
$2,283 USD
View
B+
Retailer 16
-
$2,807 USD
£2,210 GBP
View
B+
Retailer 17
-
$2,915 USD
View
B+
Retailer 18
-
$2,915 USD
View
Most Expensive
B
Brilliant Earth
21808108A · Oct 28
$4,970 USD
View
18 more retailers have this diamond
Prices start from $606 USDSave up to $4,364 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
$606 USD