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Round|Lab Grown|IGI

3.50ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG655449566

Shape and cutting style on the report: Round brilliant

Certificate IGI LG655449566

Diamond specifications and retailer prices

From $680 NZD
$383 USD
As of October 29, 2026
Save $2,631 NZD (79%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,353 NZD at Michael Trio · As of October 13, 2026
View at Michael Trio

About this 3.5ct lab-grown round diamond

This 3.5ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG655449566 or 655449566. Listed at 9 retailers as of October 29, 2026, with a 387% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655449566
Dimensions9.74 × 9.70 × 6.03 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.74 mm9.70 mm3.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655449566
Side View
Table 56.0%Crown 35.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.0%

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 29
Current: $3,353 NZD|Low: $749 NZD|High: $3,965 NZD|Avg: $2,154 NZD|-0.6%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 8$761 NZD
Retailer 2$1,129 NZD
Retailer 5$1,351 NZD
Retailer 10$1,419 NZD
Retailer 4$1,957 NZD
Retailer 3$2,049 NZD
Retailer 11$2,179 NZD
Retailer 9$2,363 NZD
Retailer 7$2,369 NZD
Retailer 6$3,310 NZD
Michael Trio$3,353 NZD
Retailer 12$3,965 NZD

37 data points across 12 retailers

9 retailers$680 NZD to $3,310 NZD

A
Cheapest Retailer
-
$680 NZD
$383 USD
A
Retailer 2
-
$761 NZD
$429 USD
View
A
Retailer 3
-
$1,129 NZD
£501 GBP
View
A
Retailer 4
-
$1,351 NZD
€725 EUR
View
B+
Retailer 5
-
$2,363 NZD
$1,332 USD
View
B+
Retailer 6
-
$2,369 NZD
$1,335 USD
View
B+
Retailer 7
-
$2,709 NZD
$1,527 USD
View
B+
Retailer 8
-
$3,310 NZD
£1,469 GBP
View
Most Expensive
Michael Trio
1371818661 · Oct 13
$3,353 NZD
SGD 2,554 SGD
View
Price last confirmed 17 days ago
8 more retailers have this diamond
Prices start from $680 NZDSave up to $2,631 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
3.50ct Round
$680 NZD