CaratHunter
Plans
Round|Lab Grown|IGI

3.61ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG608366181

Shape and cutting style on the report: Round brilliant

Certificate IGI LG608366181

Diamond specifications and retailer prices

From $1,239 AUD
€829 EUR
As of October 29, 2026
Save $2,818 AUD (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,057 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.61ct lab-grown round diamond

This 3.61ct 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 LG608366181 or 608366181. Listed at 14 retailers as of October 29, 2026, with prices from $1,239 to $4,057, a $2,818 spread on the same certified stone. Brilliant Earth lists it at $4,057. 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

3.61
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG608366181
Dimensions9.83 × 9.80 × 6.07 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 and may include post-growth treatment Type IIa
Top View
9.83 mm9.80 mm3.61 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG608366181
Side View
Table 57.0%Crown 35.6°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.8%

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: $4,057 AUD|Low: $767 AUD|High: $4,313 AUD|Avg: $1,819 AUD|-5.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 3$767 AUD
Retailer 11$1,039 AUD
Retailer 5$1,239 AUD
Retailer 7$1,267 AUD
Retailer 10$1,398 AUD
Retailer 8$1,442 AUD
Retailer 2$1,497 AUD
Retailer 9$1,671 AUD
Retailer 6$2,326 AUD
Retailer 4$3,782 AUD
Brilliant Earth$4,057 AUD

37 data points across 11 retailers

14 retailers$1,239 AUD to $4,057 AUD

Retailer 1
-
$619 AUD
$435 USD
Price last confirmed 36 days ago
Retailer 2
-
$693 AUD
$487 USD
View
Price last confirmed 36 days ago
Retailer 3
-
$757 AUD
$532 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$1,039 AUD
£575 GBP
View
Price last confirmed 22 days ago
A
Retailer 5
-
$1,239 AUD
€829 EUR
View
B+
Retailer 6
-
$1,267 AUD
$890 USD
View
B+
Retailer 7
-
$1,398 AUD
$982 USD
View
A
Retailer 8
-
$1,442 AUD
$1,013 USD
View
B+
Retailer 9
-
$1,497 AUD
£828 GBP
View
B+
Retailer 10
-
$1,671 AUD
$1,174 USD
View
B
Retailer 11
-
$2,326 AUD
$1,634 USD
View
Retailer 12
-
$2,468 AUD
$1,734 USD
View
Price last confirmed 33 days ago
B
Retailer 13
-
$3,782 AUD
£2,092 GBP
View
Most Expensive
B
Brilliant Earth
8695424A · Oct 29
$4,057 AUD
$2,850 USD
View
13 more retailers have this diamond
Prices start from $1,239 AUDSave up to $2,818 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
3.61ct Round
$1,239 AUD