Cushion|Lab Grown|IGI

1.33ct D IF Cushion Lab Grown Diamond

GD • D/IF • IGI LG831696418

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG831696418

Diamond specifications and retailer prices

From $384 USD
As of October 25, 2026
Save $1,766 USD (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,150 USD at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1.33ct lab-grown cushion diamond

This 1.33ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG831696418 or 831696418. Listed at 18 retailers as of October 25, 2026, with prices from $384 to $2,150, a $1,766 spread on the same certified stone. Helzberg Diamonds lists it at $2,150. 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

1.33
Carat
D
Color
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831696418
Dimensions6.28 × 6.23 × 4.12 mm
L/W Ratio1.01
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
6.28 mm6.23 mm1.33 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831696418
Side View
Table 63.0%Crown 36.3°Girdle: MED-THKPavilion 38.3°Culet: NoneDepth 66.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 25
Current: $2,150 USD|Low: $347 USD|High: $2,440 USD|Avg: $1,035 USD
Helzberg Diamonds
Retailer 2
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Retailer 19
October 31, 2026
Retailer 8$347 USD
Retailer 9$384 USD
Retailer 4$398 USD
Retailer 18$540 USD
Retailer 10$626 USD
Retailer 6$635 USD
Retailer 2$659 USD
Retailer 17$660 USD
Retailer 14$684 USD
Retailer 3$929 USD
Retailer 16$937 USD
Retailer 12$991 USD
Retailer 5$1,104 USD
Retailer 7$1,282 USD
Retailer 11$1,308 USD
Retailer 15$1,548 USD
Retailer 19$1,740 USD
Retailer 13$2,130 USD
Helzberg Diamonds$2,150 USD

18 data points across 19 retailers

18 retailers$384 USD to $2,150 USD

A
Cheapest Retailer
-
$384 USD
Retailer 2
-
$398 USD
£313 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
$540 USD
View
A
Retailer 4
-
$626 USD
View
A
Retailer 5
-
$635 USD
View
A
Retailer 6
-
$659 USD
€628 EUR
View
A
Retailer 7
-
$660 USD
ZAR 10,670 ZAR
View
A
Retailer 8
-
$684 USD
£539 GBP
View
B+
Retailer 9
-
$929 USD
View
A
Retailer 10
-
$937 USD
A$1,442 AUD
View
B+
Retailer 11
-
$991 USD
View
B+
Retailer 12
-
$1,104 USD
View
B
Retailer 13
-
$1,282 USD
View
B
Retailer 14
-
$1,308 USD
SGD 1,768 SGD
View
B+
Retailer 15
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$1,548 USD
£1,219 GBP
View
Retailer 16
-
$1,740 USD
View
Price last confirmed 12 days ago
B
Retailer 17
-
$2,130 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJHMPMKHO · Oct 30
$2,150 USD
View
17 more retailers have this diamond
Prices start from $384 USDSave up to $1,766 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
1.33ct Cushion
$384 USD