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3.09ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 2487357247

Certificate GIA 2487357247

Diamond specifications and retailer prices

From $1,735 SGD
As of November 5, 2026
Save $2,455 SGD (59%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,190 SGD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round 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 GIA 2487357247. Listed at 5 retailers as of October 31, 2026, with prices from $1,735 to $4,190, a $2,455 spread on the same certified stone. Blue Nile lists it at $4,190. 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

3.09
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 2487357247
Dimensions9.41 × 9.39 × 5.72 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
9.41 mm9.39 mm3.09 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2487357247
Side View
Table 58.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $4,190 SGD|Low: $1,514 SGD|High: $8,735 SGD|Avg: $3,571 SGD
Blue Nile
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
October 29, 2026
Retailer 6$1,732 SGD
Retailer 10$1,735 SGD
Retailer 12$1,755 SGD
Retailer 2$1,888 SGD
Retailer 9$2,012 SGD
Retailer 15$2,030 SGD
Retailer 14$2,050 SGD
Retailer 13$2,173 SGD
Retailer 16$3,394 SGD
Retailer 11$3,772 SGD
Blue Nile$4,190 SGD
Retailer 5$4,934 SGD
Retailer 3$5,658 SGD
Retailer 8$5,658 SGD
Retailer 7$5,710 SGD
Retailer 4$8,735 SGD

10 data points across 16 retailers

5 retailers$1,735 SGD to $4,190 SGD

B+
Cheapest Retailer
-
$1,735 SGD
B+
Retailer 2
-
$1,888 SGD
View
B+
Retailer 3
-
$2,012 SGD
View
B
Retailer 4
-
$3,772 SGD
View
Most Expensive
B
Blue Nile
24787994 · Oct 31
$4,190 SGD
$3,280 USD
View
4 more retailers have this diamond
Prices start from $1,735 SGDSave up to $2,455 SGD

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.

B+
3.09ct Round
$1,735 SGD