CaratHunter
Plans
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 $461 AUD
$324 USD
As of October 26, 2026
Save $3,639 AUD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,100 AUD 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 $461 to $4,100, a $3,639 spread on the same certified stone. Do Amore Diamonds lists it at $4,100. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $4,100 AUD|Low: $461 AUD|High: $4,314 AUD|Avg: $1,812 AUD|-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$461 AUD
Retailer 6$535 AUD
Retailer 10$927 AUD
Retailer 4$932 AUD
Retailer 2$989 AUD
Retailer 11$1,536 AUD
Retailer 7$1,677 AUD
Retailer 9$2,029 AUD
Retailer 5$2,470 AUD
Retailer 3$3,032 AUD
Do Amore Diamonds$4,100 AUD

33 data points across 11 retailers

11 retailers$461 AUD to $4,100 AUD

A
Cheapest Retailer
-
$461 AUD
$324 USD
A
Retailer 2
-
$535 AUD
$376 USD
View
B+
Retailer 3
-
$927 AUD
$651 USD
View
B+
Retailer 4
-
$932 AUD
$655 USD
View
A
Retailer 5
-
$989 AUD
£547 GBP
View
B+
Retailer 6
-
$1,536 AUD
$1,079 USD
View
B+
Retailer 7
-
$1,677 AUD
$1,178 USD
View
B+
Retailer 8
-
$2,029 AUD
$1,425 USD
View
Retailer 9
-
$2,470 AUD
£1,366 GBP
View
Price last confirmed 7 days ago
B
Retailer 10
-
$3,032 AUD
$2,130 USD
View
Most Expensive
B
Do Amore Diamonds
27-EBEE7FE81 · Oct 29
$4,100 AUD
$2,880 USD
View
10 more retailers have this diamond
Prices start from $461 AUDSave up to $3,639 AUD

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
$461 AUD