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Radiant|Lab Grown|IGI

1.79ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1 • IGI LG612339021

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG612339021

Diamond specifications and retailer prices

From $189 USD
As of October 27, 2026
Save $1,631 USD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,820 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.79ct lab-grown radiant diamond

This 1.79ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG612339021 or 612339021. Listed at 12 retailers as of October 27, 2026, with prices from $189 to $1,820, a $1,631 spread on the same certified stone. Do Amore Diamonds lists it at $1,820. 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

1.79
Carat
F
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG612339021
Dimensions8.59 × 5.93 × 4.06 mm
L/W Ratio1.45
Culet sizePointed
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
8.59 mm5.93 mm1.79 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG612339021
Side View
Table 65.0%Crown 41.9°Girdle: MediumPavilion 35.3°Culet: NoneDepth 68.5%

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 27
Current: $1,820 USD|Low: $189 USD|High: $1,890 USD|Avg: $805 USD|-3.7%
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
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 13$189 USD
Retailer 3$220 USD
Retailer 11$220 USD
Retailer 10$334 USD
Retailer 7$366 USD
Retailer 15$413 USD
Retailer 6$554 USD
Retailer 9$704 USD
Retailer 12$758 USD
Retailer 14$833 USD
Retailer 5$850 USD
Retailer 2$1,044 USD
Retailer 17$1,089 USD
Retailer 8$1,203 USD
Retailer 16$1,300 USD
Retailer 4$1,480 USD
Do Amore Diamonds$1,820 USD

24 data points across 17 retailers

12 retailers$189 USD to $1,820 USD

A
Cheapest Retailer
-
$189 USD
A
Retailer 2
-
$220 USD
View
B+
Retailer 3
-
$220 USD
View
Final sale: no returns
A
Retailer 4
-
$334 USD
£263 GBP
View
B+
Retailer 5
-
$413 USD
View
Retailer 6
-
$758 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$833 USD
View
B
Retailer 8
-
$1,044 USD
£822 GBP
View
B
Retailer 9
-
$1,089 USD
View
B
Retailer 10
-
$1,300 USD
View
B
Retailer 11
-
$1,480 USD
View
Most Expensive
B
Do Amore Diamonds
27-B24787836 · Oct 29
$1,820 USD
View
11 more retailers have this diamond
Prices start from $189 USDSave up to $1,631 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
1.79ct Radiant
$189 USD