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Marquise|Lab Grown|IGI

3.06ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG729507535

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG729507535

Diamond specifications and retailer prices

From $617 NZD
As of November 6, 2026
Save $4,666 NZD (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,283 NZD at Brilliant Earth · As of November 4, 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 LG729507535 or 729507535. Listed at 19 retailers as of November 4, 2026, with prices from $617 to $5,283, a $4,666 spread on the same certified stone. Brilliant Earth lists it at $5,283. 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729507535
Dimensions15.38 × 7.67 × 4.56 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.38 mm7.67 mm3.06 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729507535
Side View
Table 64.0%Crown 33.5°Girdle: MED-STKPavilion 40°Culet: NoneDepth 59.5%

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: Nov 6
Current: $5,283 NZD|Low: $608 NZD|High: $5,283 NZD|Avg: $1,940 NZD
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 17$617 NZD
Retailer 16$690 NZD
Retailer 4$715 NZD
Retailer 13$765 NZD
Retailer 6$841 NZD
Retailer 15$1,032 NZD
Retailer 11$1,037 NZD
Retailer 2$1,179 NZD
Retailer 3$1,229 NZD
Retailer 10$1,338 NZD
Retailer 12$1,361 NZD
Retailer 9$1,918 NZD
Retailer 7$2,439 NZD
Retailer 18$2,458 NZD
Retailer 5$2,738 NZD
Retailer 14$2,980 NZD
Retailer 8$4,750 NZD
Brilliant Earth$5,283 NZD

33 data points across 18 retailers

19 retailers$617 NZD to $5,283 NZD

A
Cheapest Retailer
-
$617 NZD
A
Retailer 2
-
$690 NZD
View
Final sale: no returns
A
Retailer 3
-
$715 NZD
View
A
Retailer 4
-
$765 NZD
View
Retailer 5
-
$776 NZD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$841 NZD
View
A
Retailer 7
-
$1,032 NZD
View
A
Retailer 8
-
$1,037 NZD
View
A
Retailer 9
-
$1,179 NZD
View
B+
Retailer 10
-
$1,229 NZD
View
Retailer 11
-
$1,338 NZD
View
Price last confirmed 11 days ago
A
Retailer 12
-
$1,361 NZD
View
B+
Retailer 13
-
$1,918 NZD
View
B+
Retailer 14
-
$2,439 NZD
View
B+
Retailer 15
-
$2,458 NZD
View
B
Retailer 16
-
$2,738 NZD
View
B+
Retailer 17
-
$2,980 NZD
View
Retailer 18
-
$4,750 NZD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
16747576A · Nov 4
$5,283 NZD
$2,970 USD
View
18 more retailers have this diamond
Prices start from $617 NZDSave up to $4,666 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
3.06ct Marquise
$617 NZD