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Cushion|Lab Grown|IGI

1.81ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG841678783

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG841678783

Diamond specifications and retailer prices

From $623 USD
£491 GBP
As of October 29, 2026
Save $3,667 USD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,756 USD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 1.81ct lab-grown cushion diamond

This 1.81ct 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 LG841678783 or 841678783. Listed at 11 retailers as of October 28, 2026, with a 588% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841678783
Dimensions9.03 × 5.95 × 4.11 mm
L/W Ratio1.52
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
9.03 mm5.95 mm1.81 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841678783
Side View
Table 60.0%Crown 35.6°Girdle: MED-STKPavilion 33.4°Culet: NoneDepth 69.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $5,756 USD|Low: $620 USD|High: $5,756 USD|Avg: $2,466 USD
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 2$623 USD
Retailer 5$765 USD
Retailer 9$837 USD
Retailer 6$914 USD
Retailer 10$1,146 USD
Retailer 7$2,156 USD
Retailer 3$2,673 USD
Retailer 4$2,940 USD
Retailer 11$3,285 USD
Retailer 8$3,800 USD
Retailer 12$4,290 USD
Novita Diamonds$5,756 USD

20 data points across 12 retailers

11 retailers$623 USD to $4,290 USD

A
Cheapest Retailer
-
$623 USD
£491 GBP
A
Retailer 2
-
$765 USD
View
A
Retailer 3
-
$837 USD
View
A
Retailer 4
-
$914 USD
€870 EUR
View
A
Retailer 5
-
$1,146 USD
View
B+
Retailer 6
-
$2,156 USD
£1,698 GBP
View
B+
Retailer 7
-
$2,673 USD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
$3,285 USD
View
Price last confirmed 7 days ago
B
Retailer 9
-
$3,800 USD
View
B
Retailer 10
-
$4,290 USD
View
Most Expensive
B
Novita Diamonds
cert_841678783 · Oct 8
$5,756 USD
A$8,855 AUD
View
Price last confirmed 20 days ago
10 more retailers have this diamond
Prices start from $623 USDSave up to $3,667 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
1.81ct Cushion
$623 USD