Cushion|Lab Grown|IGI

1.73ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846662373

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846662373

Diamond specifications and retailer prices

From $749 USD
£589 GBP
As of October 30, 2026
Save $3,124 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,872 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.73ct lab-grown cushion diamond

This 1.73ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846662373 or 846662373. Listed at 10 retailers as of October 29, 2026, with prices from $749 to $3,872, a $3,124 spread on the same certified stone. MOH London lists it at $3,872. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662373
Dimensions9.04 × 6.04 × 4.03 mm
L/W Ratio1.50
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
9.04 mm6.04 mm1.73 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662373
Side View
Table 60.0%Crown 34.8°Girdle: MED-VTKPavilion 33.4°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
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 30
Current: $3,872 USD|Low: $749 USD|High: $7,459 USD|Avg: $2,795 USD|+4.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8$749 USD
Retailer 2$840 USD
Retailer 7$1,086 USD
Retailer 4$1,423 USD
Retailer 9$1,946 USD
Retailer 5$2,441 USD
Retailer 3$2,585 USD
Retailer 10$2,950 USD
Retailer 6$3,610 USD
MOH London$3,872 USD

15 data points across 10 retailers

10 retailers$749 USD to $3,872 USD

A
Cheapest Retailer
-
$749 USD
£589 GBP
A
Retailer 2
-
$840 USD
View
A
Retailer 3
-
$1,086 USD
View
A
Retailer 4
-
$1,423 USD
View
B+
Retailer 5
-
$1,946 USD
€1,853 EUR
View
B+
Retailer 6
-
$2,441 USD
View
B+
Retailer 7
-
$2,585 USD
View
Retailer 8
-
$2,950 USD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$3,610 USD
View
Most Expensive
B
MOH London
LG846662373 · Oct 29
$3,872 USD
£3,049 GBP
View
9 more retailers have this diamond
Prices start from $749 USDSave up to $3,124 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
1.73ct Cushion
$749 USD