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Round|Lab Grown|GIA

2.09ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 2488551189

Certificate GIA 2488551189

Diamond specifications and retailer prices

From $720 AUD
As of November 5, 2026
Save $3,051 AUD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,771 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 GIA 2488551189. Listed at 16 retailers as of November 5, 2026, with prices from $720 to $3,771, a $3,051 spread on the same certified stone. Brilliant Earth lists it at $3,771. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 2488551189
Dimensions8.21 × 8.19 × 5.04 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
8.21 mm8.19 mm2.09 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2488551189
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.4%

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 5
Current: $3,771 AUD|Low: $691 AUD|High: $3,774 AUD|Avg: $1,566 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
Retailer 14
November 6, 2026
Retailer 12$720 AUD
Retailer 3$807 AUD
Retailer 5$807 AUD
Retailer 14$893 AUD
Retailer 10$1,093 AUD
Retailer 11$1,200 AUD
Retailer 4$1,244 AUD
Retailer 2$1,299 AUD
Retailer 7$1,339 AUD
Retailer 13$1,721 AUD
Retailer 9$1,960 AUD
Retailer 6$2,350 AUD
Retailer 8$3,730 AUD
Brilliant Earth$3,771 AUD

43 data points across 14 retailers

16 retailers$720 AUD to $3,771 AUD

A
Cheapest Retailer
-
$720 AUD
A
Retailer 2
-
$807 AUD
View
Final sale: no returns
A
Retailer 3
-
$807 AUD
View
Retailer 4
-
$893 AUD
View
Price last confirmed 21 days ago
A
Retailer 5
-
$893 AUD
View
B+
Retailer 6
-
$1,093 AUD
View
B+
Retailer 7
-
$1,200 AUD
View
B+
Retailer 8
-
$1,200 AUD
View
B+
Retailer 9
-
$1,244 AUD
View
B+
Retailer 10
-
$1,299 AUD
View
B+
Retailer 11
-
$1,339 AUD
View
Retailer 12
-
$1,721 AUD
View
Price last confirmed 30 days ago
B
Retailer 13
-
$1,960 AUD
View
B
Retailer 14
-
$2,350 AUD
View
B
Retailer 15
-
$3,730 AUD
View
Most Expensive
B
Brilliant Earth
9181572A · Nov 5
$3,771 AUD
$2,640 USD
View
15 more retailers have this diamond
Prices start from $720 AUDSave up to $3,051 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
$720 AUD