Round|Lab Grown|IGI

1.57ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG494166892

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494166892

Diamond specifications and retailer prices

From $421 USD
As of October 21, 2026
13 retailers carry this diamond
Most expensive: $3,010 USD at Do Amore Diamonds · As of October 23, 2026
View at Do Amore Diamonds

About this 1.57ct lab-grown round diamond

This 1.57ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494166892 or 494166892. Listed at 13 retailers as of October 21, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.57
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494166892
Dimensions7.43 × 7.47 × 4.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.43 mm7.47 mm1.57 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494166892
Side View
Table 58.0%Crown 35°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 61.9%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 21
Current: $3,010 USD|Low: $420 USD|High: $3,010 USD|Avg: $1,068 USD
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
October 22, 2026
Retailer 9$421 USD
Retailer 4$462 USD
Retailer 2$500 USD
Retailer 11$575 USD
Retailer 3$725 USD
Retailer 6$749 USD
Retailer 5$826 USD
Retailer 10$1,232 USD
Retailer 13$1,269 USD
Retailer 8$1,492 USD
Retailer 7$1,648 USD
Retailer 12$1,822 USD
Do Amore Diamonds$3,010 USD

6 data points across 13 retailers

13 retailers$421 USD to $3,010 USD

Retailer 1
-
$421 USD
Price last confirmed 9 days ago
Retailer 2
-
$462 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$500 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$575 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$725 USD
View
Price last confirmed 9 days ago
Retailer 6
-
$749 USD
£590 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
$826 USD
View
Price last confirmed 10 days ago
Retailer 8
-
$1,232 USD
View
Price last confirmed 12 days ago
Retailer 9
-
$1,269 USD
View
Price last confirmed 8 days ago
Retailer 10
-
$1,492 USD
View
Price last confirmed 9 days ago
Retailer 11
-
$1,648 USD
View
Price last confirmed 9 days ago
Retailer 12
-
$1,822 USD
£1,435 GBP
View
Price last confirmed 13 days ago
Most Expensive
Do Amore Diamonds
27-23FF81168 · Oct 23
$3,010 USD
View
Price last confirmed 8 days ago
12 more retailers have this diamond

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.

1.57ct Round
$421 USD