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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 $1,163 AUD
$817 USD
As of October 30, 2026
Save $1,596 AUD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,812 AUD 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 30, 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
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770669255
Dimensions8.60 × 6.37 × 4.33 mm
L/W Ratio1.35
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
8.60 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,812 AUD|Low: $1,163 AUD|High: $5,096 AUD|Avg: $2,558 AUD|-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 31, 2026
Retailer 11$1,163 AUD
Retailer 4$1,181 AUD
Retailer 2$1,204 AUD
Retailer 9$1,204 AUD
Retailer 5$1,267 AUD
Retailer 10$2,088 AUD
Retailer 8$2,417 AUD
Retailer 6$2,710 AUD
Retailer 7$2,759 AUD
Retailer 3$4,509 AUD
Rare Carat$4,812 AUD

45 data points across 11 retailers

12 retailers$1,163 AUD to $2,759 AUD

A
Cheapest Retailer
-
$1,163 AUD
$817 USD
A
Retailer 2
-
$1,181 AUD
€790 EUR
View
A
Retailer 3
-
$1,204 AUD
£666 GBP
View
A
Retailer 4
-
$1,204 AUD
$846 USD
View
A
Retailer 5
-
$1,267 AUD
ZAR 14,373 ZAR
View
A
Retailer 6
-
$2,088 AUD
$1,467 USD
View
B+
Retailer 7
-
$2,417 AUD
$1,698 USD
View
B+
Retailer 8
-
$2,570 AUD
$1,805 USD
View
B+
Retailer 9
-
$2,710 AUD
£1,499 GBP
View
B+
Retailer 10
-
$2,759 AUD
$1,938 USD
View
Retailer 11
-
$4,509 AUD
View
Price last confirmed 23 days ago
Most Expensive
Rare Carat
LB448 · Oct 21
$4,812 AUD
$3,380 USD
View
Price last confirmed 10 days ago
11 more retailers have this diamond
Prices start from $1,163 AUDSave up to $1,596 AUD

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
$1,163 AUD