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Round|Lab Grown|IGI

3.75ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG626426210

Shape and cutting style on the report: Round brilliant

Certificate IGI LG626426210

Diamond specifications and retailer prices

From $1,339 USD
CA$1,859 CAD
As of October 30, 2026
Save $431 USD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,770 USD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.75ct lab-grown round diamond

This 3.75ct 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 LG626426210 or 626426210. Listed at 2 retailers as of October 30, 2026, with prices from $1,339 to $1,770, a $431 spread on the same certified stone. The Diamond Guys lists it at $1,770. 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

3.75
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626426210
Dimensions10.12 × 10.05 × 6.05 mm
L/W Ratio1.01
Girdle conditionFaceted
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
10.12 mm10.05 mm3.75 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626426210
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $2,195 USD|Low: $266 USD|High: $3,280 USD|Avg: $1,333 USD|-4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
The Diamond Guys
August 3, 2026
Retailer 9$309 USD
Retailer 4$725 USD
Retailer 6$787 USD
Retailer 11$883 USD
Retailer 2$894 USD
Retailer 7$1,064 USD
Retailer 10$1,081 USD
Retailer 5$1,109 USD
Retailer 8$1,339 USD
Retailer 3$1,715 USD
The Diamond Guys$1,770 USD
Retailer 1$2,195 USD
Retailer 12$2,760 USD

56 data points across 13 retailers

2 retailers$1,339 USD to $1,770 USD

B+
Cheapest Retailer
-
$1,339 USD
CA$1,859 CAD
Most Expensive
B
The Diamond Guys
1954434363 · Nov 1
$1,770 USD
View
1 more retailer has this diamond
Prices start from $1,339 USDSave up to $431 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.

B+
3.75ct Round
$1,339 USD