Radiant|Lab Grown|IGI

1.73ct E VS1 Radiant Lab Grown Diamond

GD • E/VS1 • IGI LG643427366

Certificate IGI LG643427366

Diamond specifications and retailer prices

From $268 USD
Save $1,782 USD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,050 USD at Brilliant Earth
View at Brilliant Earth

About this 1.73ct lab-grown radiant diamond

This 1.73ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG643427366 or 643427366. Listed at 16 retailers, with prices from $268 to $2,050 at Brilliant Earth, a $1,782 spread on the same certified stone. 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

1.73
Carat
E
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG643427366
Dimensions8.51 × 5.78 × 3.94 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.51 mm5.78 mm1.73 ctE / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG643427366
Side View
Table 66.0%Crown 45.2°Girdle: MediumPavilion 34.2°Culet: NoneDepth 68.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 27
Current: $2,050 USD|Low: $268 USD|High: $2,630 USD|Avg: $909 USD|-22.1%
Brilliant Earth
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
September 30, 2026
Retailer 8$268 USD
Retailer 12$282 USD
Retailer 10$286 USD
Retailer 4$461 USD
Retailer 9$486 USD
Retailer 11$492 USD
Retailer 7$525 USD
Retailer 13$622 USD
Retailer 3$645 USD
Retailer 6$972 USD
Retailer 5$1,036 USD
Retailer 14$1,147 USD
Retailer 2$1,295 USD
Brilliant Earth$2,050 USD

35 data points across 14 retailers

16 retailers$268 USD to $2,050 USD

A
Cheapest Retailer
-
$268 USD
A
Retailer 2
-
$282 USD
View
A
Retailer 3
-
$286 USD
View
B+
Retailer 4
-
$461 USD
View
B+
Retailer 5
-
$486 USD
ZAR 7,846 ZAR
View
B+
Retailer 6
-
$492 USD
€469 EUR
View
B+
Retailer 7
-
$512 USD
£403 GBP
View
Price last confirmed 16 days ago
B+
Retailer 8
-
$525 USD
£414 GBP
View
B+
Retailer 9
-
$622 USD
View
B+
Retailer 10
-
$645 USD
View
B+
Retailer 11
-
$804 USD
View
B
Retailer 12
-
$972 USD
View
B
Retailer 13
-
$1,036 USD
£816 GBP
View
Price last confirmed 17 days ago
B
Retailer 14
-
$1,147 USD
£903 GBP
View
Price last confirmed 9 days ago
B
Retailer 15
-
$1,295 USD
View
Most Expensive
C
Brilliant Earth
10985855A · Oct 1
$2,050 USD
View
15 more retailers have this diamond
Prices start from $268 USDSave up to $1,782 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.

A
1.73ct Radiant
$268 USD