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Cushion|Lab Grown|IGI

1.83ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG770669255

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG770669255

Diamond specifications and retailer prices

From $817 USD
As of October 28, 2026
Save $1,121 USD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,380 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.83ct lab-grown cushion diamond

This 1.83ct 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 LG770669255 or 770669255. Listed at 12 retailers as of October 27, 2026, with a 137% 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

1.83
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770669255
Dimensions6.37 × 6.37 × 8.60 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
6.37 mm6.37 mm1.83 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770669255
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 68.0%

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 28
Current: $3,380 USD|Low: $817 USD|High: $3,580 USD|Avg: $1,814 USD|-5.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 28, 2026
Retailer 11$817 USD
Retailer 5$823 USD
Retailer 9$846 USD
Retailer 4$847 USD
Retailer 2$890 USD
Retailer 10$1,467 USD
Retailer 8$1,698 USD
Retailer 6$1,904 USD
Retailer 7$1,938 USD
Retailer 3$3,167 USD
Rare Carat$3,380 USD

42 data points across 11 retailers

12 retailers$817 USD to $1,938 USD

A
Cheapest Retailer
-
$817 USD
A
Retailer 2
-
$823 USD
€784 EUR
View
A
Retailer 3
-
$846 USD
View
A
Retailer 4
-
$847 USD
£667 GBP
View
A
Retailer 5
-
$890 USD
ZAR 14,373 ZAR
View
A
Retailer 6
-
$1,467 USD
View
A
Retailer 7
-
$1,698 USD
View
A
Retailer 8
-
$1,805 USD
View
B+
Retailer 9
-
$1,904 USD
£1,499 GBP
View
B+
Retailer 10
-
$1,938 USD
View
B+
Retailer 11
-
$3,167 USD
A$4,873 AUD
View
Price last confirmed 21 days ago
Most Expensive
B+
Rare Carat
LB448 · Oct 21
$3,380 USD
View
Price last confirmed 7 days ago
11 more retailers have this diamond
Prices start from $817 USDSave up to $1,121 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
1.83ct Cushion
$817 USD