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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 $1,450 NZD
$817 USD
As of November 1, 2026
Save $1,989 NZD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,997 NZD 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 November 1, 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: Nov 1
Current: $5,997 NZD|Low: $1,450 NZD|High: $6,352 NZD|Avg: $3,182 NZD|-5.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 11$1,450 NZD
Retailer 5$1,461 NZD
Retailer 4$1,500 NZD
Retailer 9$1,501 NZD
Retailer 6$1,579 NZD
Retailer 10$2,603 NZD
Retailer 8$3,013 NZD
Retailer 2$3,373 NZD
Retailer 7$3,439 NZD
Retailer 3$5,620 NZD
Rare Carat$5,997 NZD

45 data points across 11 retailers

12 retailers$1,450 NZD to $3,439 NZD

A
Cheapest Retailer
-
$1,450 NZD
$817 USD
A
Retailer 2
-
$1,461 NZD
€784 EUR
View
A
Retailer 3
-
$1,500 NZD
£666 GBP
View
A
Retailer 4
-
$1,501 NZD
$846 USD
View
A
Retailer 5
-
$1,579 NZD
ZAR 14,373 ZAR
View
A
Retailer 6
-
$2,603 NZD
$1,467 USD
View
B+
Retailer 7
-
$3,013 NZD
$1,698 USD
View
B+
Retailer 8
-
$3,203 NZD
$1,805 USD
View
B+
Retailer 9
-
$3,373 NZD
£1,497 GBP
View
B+
Retailer 10
-
$3,439 NZD
$1,938 USD
View
Retailer 11
-
$5,620 NZD
A$4,873 AUD
View
Price last confirmed 24 days ago
Most Expensive
Rare Carat
LB448 · Oct 21
$5,997 NZD
$3,380 USD
View
Price last confirmed 11 days ago
11 more retailers have this diamond
Prices start from $1,450 NZDSave up to $1,989 NZD

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
$1,450 NZD