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Radiant|Lab Grown|IGI

1.04ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG839643821

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

Certificate IGI LG839643821

Diamond specifications and retailer prices

From $145 USD
As of October 30, 2026
Save $1,075 USD (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,220 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.04ct lab-grown radiant diamond

This 1.04ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG839643821 or 839643821. Listed at 19 retailers as of October 30, 2026, with prices from $145 to $1,220, a $1,075 spread on the same certified stone. Do Amore Diamonds lists it at $1,220. 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

1.04
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839643821
Dimensions7.29 × 4.89 × 3.38 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.29 mm4.89 mm1.04 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839643821
Side View
Table 65.0%Crown 45°Girdle: MediumPavilion 38°Culet: NoneDepth 69.1%

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: $1,220 USD|Low: $145 USD|High: $1,280 USD|Avg: $496 USD|-4.7%
Do Amore Diamonds
Retailer 2
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Retailer 20
October 30, 2026
Retailer 2$145 USD
Retailer 19$168 USD
Retailer 5$180 USD
Retailer 18$180 USD
Retailer 20$243 USD
Retailer 9$245 USD
Retailer 14$258 USD
Retailer 15$349 USD
Retailer 6$384 USD
Retailer 10$400 USD
Retailer 16$406 USD
Retailer 7$500 USD
Retailer 13$528 USD
Retailer 11$550 USD
Retailer 3$637 USD
Retailer 4$699 USD
Retailer 12$760 USD
Retailer 8$812 USD
Retailer 17$932 USD
Do Amore Diamonds$1,220 USD

17 data points across 20 retailers

19 retailers$145 USD to $1,220 USD

A
Cheapest Retailer
-
$145 USD
A
Retailer 2
-
$168 USD
View
Retailer 3
-
$180 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$180 USD
View
B+
Retailer 5
-
$243 USD
View
A
Retailer 6
-
$245 USD
View
A
Retailer 7
-
$258 USD
£203 GBP
View
A
Retailer 8
-
$349 USD
£275 GBP
View
B+
Retailer 9
-
$365 USD
View
A
Retailer 10
-
$384 USD
View
Retailer 11
-
$400 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$500 USD
View
B+
Retailer 13
-
$528 USD
CA$734 CAD
View
B
Retailer 14
-
$550 USD
View
B
Retailer 15
-
$637 USD
View
B
Retailer 16
-
$699 USD
View
B
Retailer 17
-
$812 USD
View
B
Retailer 18
-
$932 USD
£734 GBP
View
Most Expensive
B
Do Amore Diamonds
25-2343067-007C · Oct 31
$1,220 USD
View
18 more retailers have this diamond
Prices start from $145 USDSave up to $1,075 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
1.04ct Radiant
$145 USD