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Round|Lab Grown|IGI

4.09ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG588370474

Shape and cutting style on the report: Round brilliant

Certificate IGI LG588370474

Diamond specifications and retailer prices

From $2,949 USD
As of November 3, 2026
Save $17,341 USD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $20,290 USD at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

About this 4.09ct lab-grown round diamond

This 4.09ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG588370474 or 588370474. Listed at 22 retailers as of November 3, 2026, with prices from $2,949 to $20,290, a $17,341 spread on the same certified stone. Do Amore Diamonds lists it at $20,290. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.09
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588370474
Dimensions10.17 × 10.22 × 6.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.17 mm10.22 mm4.09 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588370474
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

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: Nov 3
Current: $9,545 USD|Low: $2,831 USD|High: $42,303 USD|Avg: $7,174 USD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 17$2,949 USD
Retailer 7$3,209 USD
Retailer 5$3,303 USD
Retailer 2$3,421 USD
Retailer 15$3,425 USD
Retailer 6$3,520 USD
Retailer 8$4,719 USD
Retailer 16$4,915 USD
Retailer 10$4,958 USD
Retailer 4$5,317 USD
Retailer 11$8,060 USD
Retailer 13$8,122 USD
Retailer 3$8,628 USD
Retailer 1$9,545 USD
Retailer 9$10,879 USD
Retailer 14$12,090 USD
Retailer 12$42,303 USD

44 data points across 17 retailers

22 retailers$2,949 USD to $20,290 USD

A
Cheapest Retailer
-
$2,949 USD
A
Retailer 2
-
$3,209 USD
View
A
Retailer 3
-
$3,303 USD
View
Final sale: no returns
A
Retailer 4
-
$3,421 USD
View
Retailer 5
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$3,421 USD
View
Price last confirmed 24 days ago
A
Retailer 6
-
$3,425 USD
View
A
Retailer 7
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$3,520 USD
View
A
Retailer 8
-
$3,854 USD
View
B+
Retailer 9
-
$4,719 USD
View
B+
Retailer 10
-
$4,915 USD
View
B+
Retailer 11
-
$4,958 USD
View
B+
Retailer 12
-
$5,317 USD
View
B+
Retailer 13
-
$8,060 USD
View
B
Retailer 14
-
$8,122 USD
View
B
Retailer 15
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$8,628 USD
View
B+
Retailer 16
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$9,545 USD
View
B
Retailer 17
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$10,686 USD
View
B
Retailer 18
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$10,879 USD
View
B
Retailer 19
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$12,090 USD
View
B
Retailer 20
-
$13,217 USD
View
Most Expensive
B
Do Amore Diamonds
27-9AAD0956D · Nov 5
$20,290 USD
View
20 more retailers have this diamond
Prices start from $2,949 USDSave up to $17,341 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
4.09ct Round
$2,949 USD