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3.51ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG622474286

Shape and cutting style on the report: Round brilliant

Certificate IGI LG622474286

Diamond specifications and retailer prices

From $740 USD
As of October 29, 2026
Save $1,942 USD (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,682 USD at MOH London · As of October 29, 2026
View at MOH London

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 LG622474286 or 622474286. Listed at 9 retailers as of October 29, 2026, with prices from $740 to $2,682, a $1,942 spread on the same certified stone. MOH London lists it at $2,682. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG622474286
Dimensions9.80 × 9.76 × 5.83 mm
L/W Ratio1.00
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
9.80 mm9.76 mm3.51 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG622474286
Side View
Table 62.0%Crown 35.4°Girdle: MediumPavilion 40.3°Culet: NoneDepth 59.7%

Caratlytics Score

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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 29
Current: $2,682 USD|Low: $357 USD|High: $2,700 USD|Avg: $1,380 USD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 14$357 USD
Retailer 6$636 USD
Retailer 8$639 USD
Retailer 10$740 USD
Retailer 7$987 USD
Retailer 13$991 USD
Retailer 2$999 USD
Retailer 4$1,033 USD
Retailer 9$1,649 USD
Retailer 3$1,924 USD
Retailer 12$2,079 USD
Retailer 5$2,173 USD
Retailer 11$2,353 USD
MOH London$2,682 USD

22 data points across 14 retailers

9 retailers$740 USD to $2,682 USD

Retailer 1
-
$639 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$740 USD
View
A
Retailer 3
-
$987 USD
£777 GBP
View
B+
Retailer 4
-
$991 USD
View
A
Retailer 5
-
$999 USD
£787 GBP
View
B
Retailer 6
-
$1,649 USD
View
B
Retailer 7
-
$2,079 USD
View
B
Retailer 8
-
$2,353 USD
View
Most Expensive
B
MOH London
LG622474286 · Oct 29
$2,682 USD
£2,112 GBP
View
8 more retailers have this diamond
Prices start from $740 USDSave up to $1,942 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
3.51ct Round
$740 USD