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Cushion|Lab Grown|IGI

1.56ct F IF Cushion Lab Grown Diamond

ID • F/IF • IGI LG629494063

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG629494063

Diamond specifications and retailer prices

From $340 USD
As of November 1, 2026
Save $1,282 USD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,830 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.56ct lab-grown cushion diamond

This 1.56ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG629494063 or 629494063. Listed at 16 retailers as of October 31, 2026, with a 377% 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

1.56
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629494063
Dimensions6.53 × 6.53 × 4.48 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
6.53 mm6.53 mm1.56 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629494063
Side View
Table 67.0%Crown 34.7°Girdle: MED-VTKPavilion 39.8°Culet: NoneDepth 68.6%

Caratlytics Score

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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: Nov 1
Current: $1,830 USD|Low: $340 USD|High: $1,835 USD|Avg: $960 USD|-0.3%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 9$340 USD
Retailer 10$398 USD
Retailer 8$583 USD
Retailer 14$585 USD
Retailer 3$631 USD
Retailer 16$647 USD
Retailer 13$665 USD
Retailer 11$683 USD
Retailer 12$902 USD
Retailer 15$1,069 USD
Retailer 6$1,289 USD
Retailer 4$1,486 USD
Retailer 17$1,509 USD
Retailer 7$1,523 USD
Retailer 2$1,549 USD
Retailer 5$1,622 USD
Rare Carat$1,830 USD

43 data points across 17 retailers

16 retailers$340 USD to $1,622 USD

A
Cheapest Retailer
-
$340 USD
Final sale: no returns
A
Retailer 2
-
$398 USD
£314 GBP
View
A
Retailer 3
-
$585 USD
View
A
Retailer 4
-
$631 USD
View
A
Retailer 5
-
$647 USD
View
A
Retailer 6
-
$665 USD
ZAR 10,735 ZAR
View
A
Retailer 7
-
$683 USD
£538 GBP
View
A
Retailer 8
-
$902 USD
A$1,387 AUD
View
A
Retailer 9
-
$1,069 USD
View
A
Retailer 10
-
$1,289 USD
View
B+
Retailer 11
-
$1,486 USD
View
B+
Retailer 12
-
$1,509 USD
£1,188 GBP
View
Retailer 13
-
$1,523 USD
A$2,343 AUD
View
Price last confirmed 27 days ago
B+
Retailer 14
-
$1,549 USD
£1,220 GBP
View
B+
Retailer 15
-
$1,622 USD
View
Most Expensive
Rare Carat
SKD-59063 · Oct 21
$1,830 USD
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from $340 USDSave up to $1,282 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
1.56ct Cushion
$340 USD