Cushion|Lab Grown|IGI

1.89ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG780619300

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780619300

Diamond specifications and retailer prices

From $1,457 USD
As of October 30, 2026
Save $5,630 USD (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,840 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 very-good cut grade and certified by IGI LG780619300 or 780619300. Listed at 18 retailers as of October 30, 2026, with a 386% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.89
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780619300
Dimensions9.28 × 6.52 × 4.03 mm
L/W Ratio1.42
Girdle conditionFaceted
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
9.28 mm6.52 mm1.89 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780619300
Side View
Table 61.0%Crown 32.6°Girdle: THN-STKPavilion 33.6°Culet: NoneDepth 62.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,861 USD|Low: $1,457 USD|High: $6,555 USD|Avg: $3,753 USD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 7$1,457 USD
Retailer 4$1,764 USD
Retailer 13$1,828 USD
Retailer 12$2,000 USD
Retailer 10$2,570 USD
Retailer 1$2,861 USD
Retailer 11$3,640 USD
Retailer 8$3,709 USD
Retailer 5$4,176 USD
Retailer 15$4,926 USD
Retailer 3$4,957 USD
Retailer 6$4,990 USD
Retailer 9$5,794 USD
Retailer 14$6,010 USD
Retailer 2$6,555 USD

43 data points across 15 retailers

18 retailers$1,457 USD to $7,087 USD

A
Cheapest Retailer
-
$1,457 USD
A
Retailer 2
-
$1,764 USD
View
Final sale: no returns
Retailer 3
-
$1,828 USD
View
Price last confirmed 17 days ago
B+
Retailer 4
-
$2,000 USD
View
B+
Retailer 5
-
$2,570 USD
View
B+
Retailer 6
-
$2,861 USD
£2,253 GBP
View
Retailer 7
-
$3,640 USD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$3,709 USD
ZAR 59,927 ZAR
View
B
Retailer 9
-
$4,176 USD
£3,288 GBP
View
B
Retailer 10
-
$4,926 USD
View
B
Retailer 11
-
$4,957 USD
View
B
Retailer 12
-
$4,990 USD
View
B
Retailer 13
-
$5,521 USD
View
B
Retailer 14
-
$5,794 USD
£4,562 GBP
View
B
Retailer 15
-
$6,010 USD
View
B
Retailer 16
-
$6,555 USD
View
B
Retailer 17
-
$7,087 USD
View
Most Expensive
Do Amore Diamonds
27-3BA7C789F · Oct 29
$10,840 USD
View
Price under review
17 more retailers have this diamond
Prices start from $1,457 USDSave up to $5,630 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
$1,457 USD