Cushion|Lab Grown|IGI

1.73ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818683412

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818683412

Diamond specifications and retailer prices

From $838 USD
As of October 30, 2026
Save $4,212 USD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,050 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG818683412 or 818683412. Listed at 12 retailers as of October 30, 2026, with prices from $838 to $5,050, a $4,212 spread on the same certified stone. Do Amore Diamonds lists it at $5,050. 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 angle31.5°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818683412
Dimensions8.34 × 6.48 × 4.17 mm
L/W Ratio1.29
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
8.34 mm6.48 mm1.73 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818683412
Side View
Table 58.0%Crown 31.5°Girdle: STK-THKPavilion 35.7°Culet: NoneDepth 64.4%

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: Oct 30
Current: $5,050 USD|Low: $838 USD|High: $6,680 USD|Avg: $2,548 USD|-24.4%
Do Amore Diamonds
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
October 31, 2026
Retailer 10$838 USD
Retailer 14$845 USD
Retailer 9$1,086 USD
Retailer 3$1,097 USD
Retailer 2$1,248 USD
Retailer 4$1,289 USD
Retailer 11$1,983 USD
Retailer 13$2,910 USD
Retailer 8$3,086 USD
Retailer 12$3,329 USD
Retailer 5$3,404 USD
Retailer 6$3,404 USD
Retailer 7$3,580 USD
Do Amore Diamonds$5,050 USD

28 data points across 14 retailers

12 retailers$838 USD to $5,050 USD

A
Cheapest Retailer
-
$838 USD
A
Retailer 2
-
$845 USD
View
A
Retailer 3
-
$1,086 USD
View
A
Retailer 4
-
$1,097 USD
View
A
Retailer 5
-
$1,248 USD
€1,189 EUR
View
Retailer 6
-
$1,289 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$1,983 USD
View
Retailer 8
-
$2,910 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$3,086 USD
£2,430 GBP
View
B+
Retailer 10
-
$3,329 USD
View
B+
Retailer 11
-
$3,580 USD
View
Most Expensive
B
Do Amore Diamonds
27-C45B33898 · Oct 31
$5,050 USD
View
11 more retailers have this diamond
Prices start from $838 USDSave up to $4,212 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
$838 USD