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Round|Lab Grown|IGI

3.58ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG681558022

Shape and cutting style on the report: Round brilliant

Certificate IGI LG681558022

Diamond specifications and retailer prices

From $379 USD
As of November 1, 2026
Save $1,133 USD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,908 USD at Michael Trio · As of October 13, 2026
View at Michael Trio

About this 3.58ct lab-grown round diamond

This 3.58ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG681558022 or 681558022. Listed at 9 retailers as of October 31, 2026, with a 299% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.58
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681558022
Dimensions9.83 × 9.77 × 6.04 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 Type IIa
Top View
9.83 mm9.77 mm3.58 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681558022
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.7%

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 1
Current: $1,908 USD|Low: $379 USD|High: $1,960 USD|Avg: $1,150 USD|+0.9%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 11$379 USD
Retailer 9$425 USD
Retailer 2$654 USD
Retailer 5$756 USD
Retailer 12$806 USD
Retailer 4$1,123 USD
Retailer 3$1,262 USD
Retailer 8$1,319 USD
Retailer 6$1,320 USD
Retailer 10$1,512 USD
Retailer 7$1,848 USD
Michael Trio$1,908 USD

41 data points across 12 retailers

9 retailers$379 USD to $1,512 USD

A
Cheapest Retailer
-
$379 USD
A
Retailer 2
-
$425 USD
View
A
Retailer 3
-
$654 USD
£515 GBP
View
A
Retailer 4
-
$756 USD
€720 EUR
View
B+
Retailer 5
-
$1,319 USD
View
B+
Retailer 6
-
$1,320 USD
View
B+
Retailer 7
-
$1,512 USD
View
Retailer 8
-
$1,848 USD
£1,455 GBP
View
Price last confirmed 11 days ago
Most Expensive
Michael Trio
3651762890 · Oct 13
$1,908 USD
SGD 2,578 SGD
View
Price last confirmed 19 days ago
8 more retailers have this diamond
Prices start from $379 USDSave up to $1,133 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
3.58ct Round
$379 USD