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Emerald|Lab Grown|IGI

0.66ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG805671998

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG805671998

Diamond specifications and retailer prices

From $237 AUD
HK$1,300 HKD
As of November 1, 2026
Save $362 AUD (60%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $599 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 0.66ct lab-grown emerald diamond

This 0.66ct lab-grown emerald sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805671998 or 805671998. Listed at 6 retailers as of November 1, 2026, with prices from $237 to $599, a $362 spread on the same certified stone. Brilliant Earth lists it at $599. 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

0.66
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805671998
Dimensions4.75 × 4.74 × 3.21 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.75 mm4.74 mm0.66 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805671998
Side View
Table 71.0%Crown 39.8°Girdle: MediumPavilion 39.5°Culet: NoneDepth 67.7%

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: Nov 1
Current: $599 AUD|Low: $237 AUD|High: $728 AUD|Avg: $433 AUD|-17.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$237 AUD
Retailer 4$274 AUD
Retailer 3$360 AUD
Retailer 2$481 AUD
Retailer 5$567 AUD
Brilliant Earth$599 AUD

15 data points across 6 retailers

6 retailers$237 AUD to $599 AUD

A
Cheapest Retailer
-
$237 AUD
HK$1,300 HKD
Retailer 2
-
$274 AUD
$192 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$360 AUD
€240 EUR
View
B+
Retailer 4
-
$481 AUD
$337 USD
View
B
Retailer 5
-
$567 AUD
SGD 537 SGD
View
Most Expensive
B+
Brilliant Earth
20782842A · Nov 2
$599 AUD
$420 USD
View
5 more retailers have this diamond
Prices start from $237 AUDSave up to $362 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
0.66ct Emerald
$237 AUD