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Marquise|Lab Grown|IGI

1.99ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG852634649

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG852634649

Diamond specifications and retailer prices

From $391 AUD
As of November 6, 2026
Save $2,323 AUD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,714 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.99ct lab-grown marquise diamond

This 1.99ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG852634649 or 852634649. Listed at 13 retailers as of November 5, 2026, with prices from $391 to $2,714, a $2,323 spread on the same certified stone. Brilliant Earth lists it at $2,714. 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

1.99
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG852634649
Dimensions13.08 × 6.49 × 4.07 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.08 mm6.49 mm1.99 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG852634649
Side View
Table 61.0%Crown 39°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 62.7%

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 6
Current: $766 AUD|Low: $391 AUD|High: $1,943 AUD|Avg: $902 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6$391 AUD
Retailer 12$439 AUD
Retailer 7$454 AUD
Retailer 8$537 AUD
Retailer 11$549 AUD
Retailer 10$714 AUD
Retailer 1$766 AUD
Retailer 4$803 AUD
Retailer 9$846 AUD
Retailer 2$1,560 AUD
Retailer 5$1,563 AUD
Retailer 3$1,943 AUD

3 data points across 12 retailers

13 retailers$391 AUD to $2,714 AUD

Cheapest Retailer
-
$391 AUD
A
Retailer 2
-
$439 AUD
View
Final sale: no returns
A
Retailer 3
-
$454 AUD
View
A
Retailer 4
-
$537 AUD
View
A
Retailer 5
-
$549 AUD
View
A
Retailer 6
-
$714 AUD
View
Retailer 7
-
$766 AUD
View
B+
Retailer 8
-
$803 AUD
View
A
Retailer 9
-
$846 AUD
View
B+
Retailer 10
-
$1,560 AUD
View
Retailer 11
-
$1,563 AUD
View
B
Retailer 12
-
$1,943 AUD
View
Most Expensive
B
Brilliant Earth
22517845A · Nov 5
$2,714 AUD
$1,900 USD
View
12 more retailers have this diamond
Prices start from $391 AUDSave up to $2,323 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
1.99ct Marquise
$391 AUD