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 $504 USD
As of October 29, 2026
Save $2,121 USD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,640 USD at Brilliant Earth · As of October 16, 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 October 29, 2026, with a 421% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
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

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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: Oct 29
Current: $2,640 USD|Low: $484 USD|High: $2,643 USD|Avg: $1,063 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
Retailer 14
October 31, 2026
Retailer 12$504 USD
Retailer 3$565 USD
Retailer 5$565 USD
Retailer 14$625 USD
Retailer 10$765 USD
Retailer 11$840 USD
Retailer 4$871 USD
Retailer 2$911 USD
Retailer 7$946 USD
Retailer 13$1,205 USD
Retailer 8$1,372 USD
Retailer 6$1,645 USD
Retailer 9$2,625 USD
Brilliant Earth$2,640 USD

42 data points across 14 retailers

16 retailers$504 USD to $2,625 USD

A
Cheapest Retailer
-
$504 USD
A
Retailer 2
-
$565 USD
View
Final sale: no returns
A
Retailer 3
-
$565 USD
View
Retailer 4
-
$625 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$625 USD
View
B+
Retailer 6
-
$765 USD
View
B+
Retailer 7
-
$840 USD
View
B+
Retailer 8
-
$840 USD
View
B+
Retailer 9
-
$871 USD
View
B+
Retailer 10
-
$911 USD
€868 EUR
View
B+
Retailer 11
-
$946 USD
£745 GBP
View
Retailer 12
-
$1,205 USD
View
Price last confirmed 24 days ago
B
Retailer 13
-
$1,372 USD
View
B
Retailer 14
-
$1,645 USD
View
B
Retailer 15
-
$2,625 USD
£2,067 GBP
View
Most Expensive
Brilliant Earth
9181572A · Oct 16
$2,640 USD
View
Price last confirmed 15 days ago
15 more retailers have this diamond
Prices start from $504 USDSave up to $2,121 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
2.09ct Round
$504 USD