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Round|Lab Grown|IGI

3.21ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG626401447

Shape and cutting style on the report: Round brilliant

Certificate IGI LG626401447

Diamond specifications and retailer prices

From $324 USD
As of October 26, 2026
Save $2,556 USD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,880 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.21ct lab-grown round diamond

This 3.21ct 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 LG626401447 or 626401447. Listed at 11 retailers as of October 26, 2026, with prices from $324 to $2,880, a $2,556 spread on the same certified stone. Do Amore Diamonds lists it at $2,880. 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

3.21
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626401447
Dimensions9.41 × 9.46 × 5.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
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
9.41 mm9.46 mm3.21 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626401447
Side View
Table 59.0%Crown 34.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.1%

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: Oct 26
Current: $2,880 USD|Low: $324 USD|High: $3,030 USD|Avg: $1,273 USD|-5.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 8$324 USD
Retailer 6$376 USD
Retailer 10$651 USD
Retailer 4$655 USD
Retailer 2$695 USD
Retailer 11$1,079 USD
Retailer 7$1,178 USD
Retailer 9$1,425 USD
Retailer 5$1,735 USD
Retailer 3$2,130 USD
Do Amore Diamonds$2,880 USD

33 data points across 11 retailers

11 retailers$324 USD to $2,880 USD

A
Cheapest Retailer
-
$324 USD
A
Retailer 2
-
$376 USD
View
B+
Retailer 3
-
$651 USD
View
B+
Retailer 4
-
$655 USD
View
A
Retailer 5
-
$695 USD
£547 GBP
View
B+
Retailer 6
-
$1,079 USD
View
B+
Retailer 7
-
$1,178 USD
View
B+
Retailer 8
-
$1,425 USD
View
B+
Retailer 9
-
$1,735 USD
£1,366 GBP
View
B
Retailer 10
-
$2,130 USD
View
Most Expensive
B
Do Amore Diamonds
27-EBEE7FE81 · Oct 29
$2,880 USD
View
10 more retailers have this diamond
Prices start from $324 USDSave up to $2,556 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
3.21ct Round
$324 USD