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Round|Lab Grown|IGI

1.83ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG607342744

Shape and cutting style on the report: Round brilliant

Certificate IGI LG607342744

Diamond specifications and retailer prices

From $409 USD
As of October 30, 2026
Save $1,555 USD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,964 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1.83ct lab-grown round diamond

This 1.83ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG607342744 or 607342744. Listed at 14 retailers as of October 30, 2026, with prices from $409 to $1,964, a $1,555 spread on the same certified stone. Taylor and Hart lists it at $1,964. 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

1.83
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG607342744
Dimensions7.86 × 7.91 × 4.81 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.86 mm7.91 mm1.83 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG607342744
Side View
Table 57.0%Crown 34.3°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.9%

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: $423 USD|Low: $409 USD|High: $1,964 USD|Avg: $1,073 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 3, 2026
Retailer 9$409 USD
Retailer 1$423 USD
Retailer 10$687 USD
Retailer 6$690 USD
Retailer 7$724 USD
Retailer 3$814 USD
Retailer 2$885 USD
Retailer 5$1,327 USD
Retailer 8$1,587 USD
Retailer 4$1,769 USD
Taylor and Hart$1,964 USD

31 data points across 11 retailers

14 retailers$409 USD to $1,964 USD

Retailer 1
-
$365 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$409 USD
View
Final sale: no returns
A
Retailer 3
-
$423 USD
View
Retailer 4
-
$447 USD
View
Price last confirmed 38 days ago
B+
Retailer 5
-
$687 USD
View
B+
Retailer 6
-
$690 USD
View
B+
Retailer 7
-
$724 USD
View
B+
Retailer 8
-
$814 USD
£641 GBP
View
B+
Retailer 9
-
$965 USD
View
B
Retailer 10
-
$1,327 USD
View
Retailer 11
-
$1,455 USD
View
Price last confirmed 37 days ago
B
Retailer 12
-
$1,587 USD
SGD 2,145 SGD
View
B
Retailer 13
-
$1,769 USD
£1,393 GBP
View
Most Expensive
B
Taylor and Hart
P9ELMS9 · Oct 31
$1,964 USD
View
13 more retailers have this diamond
Prices start from $409 USDSave up to $1,555 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
1.83ct Round
$409 USD