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Marquise|Lab Grown|IGI

3.06ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG842630605

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG842630605

Diamond specifications and retailer prices

From $784 AUD
HK$4,300 HKD
As of October 30, 2026
Save $3,445 AUD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,228 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.06ct lab-grown marquise diamond

This 3.06ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG842630605 or 842630605. Listed at 12 retailers as of October 29, 2026, with prices from $784 to $4,228, a $3,445 spread on the same certified stone. Brilliant Earth lists it at $4,228. 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

3.06
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842630605
Dimensions14.76 × 7.55 × 4.92 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.76 mm7.55 mm3.06 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842630605
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 65.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,228 AUD|Low: $648 AUD|High: $4,228 AUD|Avg: $1,861 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 3$648 AUD
Retailer 9$784 AUD
Retailer 6$925 AUD
Retailer 13$984 AUD
Retailer 7$1,097 AUD
Retailer 4$1,135 AUD
Retailer 8$1,173 AUD
Retailer 2$1,723 AUD
Retailer 12$2,224 AUD
Retailer 5$2,285 AUD
Retailer 11$2,820 AUD
Retailer 10$3,801 AUD
Brilliant Earth$4,228 AUD

15 data points across 13 retailers

12 retailers$784 AUD to $4,228 AUD

A
Cheapest Retailer
-
$784 AUD
HK$4,300 HKD
A
Retailer 2
-
$925 AUD
$650 USD
View
Retailer 3
-
$984 AUD
£544 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
$1,097 AUD
€734 EUR
View
B+
Retailer 5
-
$1,135 AUD
$797 USD
View
A
Retailer 6
-
$1,173 AUD
£649 GBP
View
B+
Retailer 7
-
$1,723 AUD
$1,210 USD
View
B+
Retailer 8
-
$2,224 AUD
$1,562 USD
View
B+
Retailer 9
-
$2,285 AUD
SGD 2,169 SGD
View
Retailer 10
-
$2,820 AUD
£1,560 GBP
View
Price last confirmed 10 days ago
B
Retailer 11
-
$3,801 AUD
$2,670 USD
View
Most Expensive
B
Brilliant Earth
21831554A · Oct 29
$4,228 AUD
$2,970 USD
View
11 more retailers have this diamond
Prices start from $784 AUDSave up to $3,445 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
3.06ct Marquise
$784 AUD