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 $550 USD
HK$4,300 HKD
As of October 30, 2026
Save $2,420 USD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,970 USD 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 $550 to $2,970, a $2,420 spread on the same certified stone. Brilliant Earth lists it at $2,970. 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
Color
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

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 30
Current: $2,970 USD|Low: $455 USD|High: $2,970 USD|Avg: $1,307 USD
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$455 USD
Retailer 9$550 USD
Retailer 6$650 USD
Retailer 13$691 USD
Retailer 7$771 USD
Retailer 4$797 USD
Retailer 8$824 USD
Retailer 2$1,210 USD
Retailer 12$1,562 USD
Retailer 5$1,605 USD
Retailer 11$1,981 USD
Retailer 10$2,670 USD
Brilliant Earth$2,970 USD

15 data points across 13 retailers

12 retailers$550 USD to $2,970 USD

A
Cheapest Retailer
-
$550 USD
HK$4,300 HKD
A
Retailer 2
-
$650 USD
View
Retailer 3
-
$691 USD
£544 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
$771 USD
€734 EUR
View
B+
Retailer 5
-
$797 USD
View
A
Retailer 6
-
$824 USD
£649 GBP
View
B+
Retailer 7
-
$1,210 USD
View
B+
Retailer 8
-
$1,562 USD
View
B+
Retailer 9
-
$1,605 USD
SGD 2,169 SGD
View
Retailer 10
-
$1,981 USD
£1,560 GBP
View
Price last confirmed 9 days ago
B
Retailer 11
-
$2,670 USD
View
Most Expensive
B
Brilliant Earth
21831554A · Oct 29
$2,970 USD
View
11 more retailers have this diamond
Prices start from $550 USDSave up to $2,420 USD

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
$550 USD