Cushion|Lab Grown|IGI

1.45ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG834614529

Shape and cutting style on the report: Square cushion antique cut

Certificate IGI LG834614529

Diamond specifications and retailer prices

From $663 USD
As of October 27, 2026
Save $2,024 USD (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,687 USD at MOH London · As of October 25, 2026
View at MOH London

About this 1.45ct lab-grown cushion diamond

This 1.45ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG834614529 or 834614529. Listed at 14 retailers as of October 25, 2026, with prices from $663 to $2,687, a $2,024 spread on the same certified stone. MOH London lists it at $2,687. 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

1.45
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG834614529
Dimensions7.09 × 6.76 × 4.11 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizeLarge
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
7.09 mm6.76 mm1.45 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG834614529
Side View
Table 54.0%Crown 37°Girdle: THN-MEDPavilion 39.2°Culet: LargeDepth 60.8%

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: Oct 27
Current: $2,687 USD|Low: $663 USD|High: $2,715 USD|Avg: $1,492 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 10$663 USD
Retailer 2$780 USD
Retailer 3$990 USD
Retailer 6$1,025 USD
Retailer 7$1,152 USD
Retailer 4$1,659 USD
Retailer 5$1,875 USD
Retailer 9$2,090 USD
Retailer 8$2,209 USD
MOH London$2,687 USD

28 data points across 10 retailers

14 retailers$663 USD to $2,687 USD

Retailer 1
-
$518 USD
Price last confirmed 19 days ago
Retailer 2
-
$643 USD
View
Price last confirmed 19 days ago
Retailer 3
-
$643 USD
View
Price last confirmed 27 days ago
A
Retailer 4
-
$663 USD
View
Final sale: no returns
A
Retailer 5
-
$780 USD
View
A
Retailer 6
-
$990 USD
£780 GBP
View
B+
Retailer 7
-
$1,025 USD
View
B+
Retailer 8
-
$1,152 USD
View
B+
Retailer 9
-
$1,659 USD
View
Retailer 10
-
$1,691 USD
View
Price last confirmed 22 days ago
Retailer 11
-
$1,875 USD
£1,476 GBP
View
Price last confirmed 17 days ago
B
Retailer 12
-
$2,090 USD
View
B
Retailer 13
-
$2,209 USD
View
Most Expensive
B
MOH London
LG834614529 · Oct 25
$2,687 USD
£2,116 GBP
View
13 more retailers have this diamond
Prices start from $663 USDSave up to $2,024 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
1.45ct Cushion
$663 USD