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 $575 NZD
$324 USD
As of October 26, 2026
Save $4,535 NZD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,110 NZD 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 $575 to $5,110, a $4,535 spread on the same certified stone. Do Amore Diamonds lists it at $5,110. 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: $5,110 NZD|Low: $575 NZD|High: $5,376 NZD|Avg: $2,259 NZD|-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$575 NZD
Retailer 6$667 NZD
Retailer 10$1,155 NZD
Retailer 4$1,162 NZD
Retailer 2$1,233 NZD
Retailer 11$1,914 NZD
Retailer 7$2,090 NZD
Retailer 9$2,528 NZD
Retailer 5$3,078 NZD
Retailer 3$3,779 NZD
Do Amore Diamonds$5,110 NZD

33 data points across 11 retailers

11 retailers$575 NZD to $5,110 NZD

A
Cheapest Retailer
-
$575 NZD
$324 USD
A
Retailer 2
-
$667 NZD
$376 USD
View
B+
Retailer 3
-
$1,155 NZD
$651 USD
View
B+
Retailer 4
-
$1,162 NZD
$655 USD
View
A
Retailer 5
-
$1,233 NZD
£547 GBP
View
B+
Retailer 6
-
$1,914 NZD
$1,079 USD
View
B+
Retailer 7
-
$2,090 NZD
$1,178 USD
View
B+
Retailer 8
-
$2,528 NZD
$1,425 USD
View
Retailer 9
-
$3,078 NZD
£1,366 GBP
View
Price last confirmed 7 days ago
B
Retailer 10
-
$3,779 NZD
$2,130 USD
View
Most Expensive
B
Do Amore Diamonds
27-EBEE7FE81 · Oct 29
$5,110 NZD
$2,880 USD
View
10 more retailers have this diamond
Prices start from $575 NZDSave up to $4,535 NZD

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
$575 NZD