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Round|Lab Grown|IGI

2.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG778667403

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778667403

Diamond specifications and retailer prices

From $396 AUD
As of November 5, 2026
Save $1,818 AUD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,214 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 2.09ct lab-grown round diamond

This 2.09ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778667403 or 778667403. Listed at 16 retailers as of November 5, 2026, with prices from $396 to $2,214, a $1,818 spread on the same certified stone. Brilliant Earth lists it at $2,214. 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

2.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778667403
Dimensions8.28 × 8.23 × 4.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.28 mm8.23 mm2.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778667403
Side View
Table 59.0%Crown 33.5°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
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 5
Current: $2,214 AUD|Low: $386 AUD|High: $2,343 AUD|Avg: $1,054 AUD|-5.5%
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
November 6, 2026
Retailer 8$396 AUD
Retailer 16$460 AUD
Retailer 5$491 AUD
Retailer 6$491 AUD
Retailer 7$660 AUD
Retailer 3$714 AUD
Retailer 15$714 AUD
Retailer 2$804 AUD
Retailer 10$849 AUD
Retailer 17$937 AUD
Retailer 14$944 AUD
Retailer 4$1,004 AUD
Retailer 13$1,269 AUD
Retailer 9$1,578 AUD
Retailer 12$1,657 AUD
Retailer 11$1,963 AUD
Brilliant Earth$2,214 AUD

44 data points across 17 retailers

16 retailers$396 AUD to $2,214 AUD

A
Cheapest Retailer
-
$396 AUD
A
Retailer 2
-
$460 AUD
View
A
Retailer 3
-
$491 AUD
View
Retailer 4
-
$491 AUD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$660 AUD
View
A
Retailer 6
-
$714 AUD
View
A
Retailer 7
-
$804 AUD
View
A
Retailer 8
-
$849 AUD
View
A
Retailer 9
-
$937 AUD
View
A
Retailer 10
-
$944 AUD
View
A
Retailer 11
-
$1,004 AUD
View
B+
Retailer 12
-
$1,269 AUD
View
B+
Retailer 13
-
$1,578 AUD
View
B+
Retailer 14
-
$1,657 AUD
View
B
Retailer 15
-
$1,963 AUD
View
Most Expensive
B
Brilliant Earth
18492787A · Nov 5
$2,214 AUD
$1,550 USD
View
15 more retailers have this diamond
Prices start from $396 AUDSave up to $1,818 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
2.09ct Round
$396 AUD