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Round|Lab Grown|IGI

3.21ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG621488365

Shape and cutting style on the report: Round brilliant

Certificate IGI LG621488365

Diamond specifications and retailer prices

From $505 USD
As of October 31, 2026
Save $3,115 USD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,620 USD at Do Amore Diamonds · As of October 31, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG621488365 or 621488365. Listed at 13 retailers as of October 31, 2026, with prices from $505 to $3,620, a $3,115 spread on the same certified stone. Do Amore Diamonds lists it at $3,620. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.21
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621488365
Dimensions9.50 × 9.43 × 5.72 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
9.50 mm9.43 mm3.21 ctI / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG621488365
Side View
Table 60.0%Crown 35.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $3,620 USD|Low: $498 USD|High: $3,620 USD|Avg: $1,318 USD
Do Amore Diamonds
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 12$505 USD
Retailer 9$650 USD
Retailer 6$714 USD
Retailer 2$747 USD
Retailer 13$799 USD
Retailer 14$815 USD
Retailer 4$897 USD
Retailer 8$1,210 USD
Retailer 11$1,417 USD
Retailer 10$1,775 USD
Retailer 3$1,792 USD
Retailer 5$1,941 USD
Retailer 7$2,059 USD
Do Amore Diamonds$3,620 USD

36 data points across 14 retailers

13 retailers$505 USD to $3,620 USD

A
Cheapest Retailer
-
$505 USD
A
Retailer 2
-
$650 USD
View
A
Retailer 3
-
$747 USD
£588 GBP
View
B+
Retailer 4
-
$799 USD
View
A
Retailer 5
-
$815 USD
View
B+
Retailer 6
-
$897 USD
View
B+
Retailer 7
-
$1,210 USD
ZAR 19,549 ZAR
View
B
Retailer 8
-
$1,417 USD
View
B
Retailer 9
-
$1,775 USD
View
B
Retailer 10
-
$1,792 USD
View
B
Retailer 11
-
$1,941 USD
View
B
Retailer 12
-
$2,059 USD
£1,621 GBP
View
Most Expensive
B
Do Amore Diamonds
27-024B779F7 · Oct 31
$3,620 USD
View
12 more retailers have this diamond
Prices start from $505 USDSave up to $3,115 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
$505 USD