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Round|Lab Grown|IGI

3.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG626476207

Shape and cutting style on the report: Round brilliant

Certificate IGI LG626476207

Diamond specifications and retailer prices

From $2,786 USD
CA$3,870 CAD
As of October 30, 2026
Save $2,128 USD (43%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,914 USD at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.51ct lab-grown round diamond

This 3.51ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG626476207 or 626476207. Listed at 2 retailers as of October 30, 2026, with prices from $2,786 to $4,914, a $2,128 spread on the same certified stone. The Diamond Guys lists it at $4,914. 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

3.51
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626476207
Dimensions9.72 × 9.66 × 5.99 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
9.72 mm9.66 mm3.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626476207
Side View
Table 58.0%Crown 35.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $2,786 USD|Low: $1,180 USD|High: $7,680 USD|Avg: $3,182 USD|+32.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
The Diamond Guys
June 15, 2026
Retailer 3$1,736 USD
Retailer 6$1,790 USD
Retailer 2$1,844 USD
Retailer 5$1,999 USD
Retailer 4$2,233 USD
Retailer 1$2,786 USD
The Diamond Guys$4,914 USD
Retailer 7$7,680 USD

49 data points across 8 retailers

2 retailers$2,786 USD to $4,914 USD

B
Cheapest Retailer
-
$2,786 USD
CA$3,870 CAD
Most Expensive
B
The Diamond Guys
1779253161 · Oct 30
$4,914 USD
View
1 more retailer has this diamond
Prices start from $2,786 USDSave up to $2,128 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
3.51ct Round
$2,786 USD