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Round|Lab Grown|GIA

3.00ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 1505282589

Certificate GIA 1505282589

Diamond specifications and retailer prices

From $1,481 USD
A$2,278 AUD
As of October 31, 2026
9 retailers carry this diamond
Most expensive: $4,020 USD at Brilliant Earth · As of October 3, 2026
View at Brilliant Earth

About this 3ct lab-grown round diamond

This 3ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1505282589. Listed at 9 retailers as of October 31, 2026. 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

3.00
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 1505282589
Dimensions9.21 × 9.24 × 5.75 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Girdle conditionFaceted
Cert comments
This is a man-made diamond produced by CVD (Chemical Vapor Deposition) growth process and has evidence of post-growth treatments to change the color.
Key to symbols
Feather, Growth Remnant
Top View
9.21 mm9.24 mm3.00 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1505282589
Side View
Table 55.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $4,020 USD|Low: $639 USD|High: $4,160 USD|Avg: $2,003 USD|-3.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 10$896 USD
Retailer 12$942 USD
Retailer 11$1,105 USD
Retailer 9$1,236 USD
Retailer 8$1,254 USD
Retailer 2$1,481 USD
Retailer 5$1,497 USD
Retailer 6$1,554 USD
Retailer 3$2,725 USD
Retailer 4$3,656 USD
Retailer 7$3,884 USD
Brilliant Earth$4,020 USD

31 data points across 12 retailers

9 retailers

Retailer 1
-
$942 USD
Price last confirmed 14 days ago
Retailer 2
-
$1,254 USD
HK$9,800 HKD
View
Price last confirmed 16 days ago
B+
Retailer 3
-
$1,481 USD
A$2,278 AUD
View
Retailer 4
-
$1,497 USD
£1,179 GBP
View
Price last confirmed 14 days ago
Retailer 5
-
$2,725 USD
View
Price last confirmed 15 days ago
Retailer 6
-
$2,882 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$3,656 USD
View
Price last confirmed 15 days ago
Retailer 8
-
$3,884 USD
£3,058 GBP
View
Price last confirmed 16 days ago
Most Expensive
Brilliant Earth
11719459A · Oct 3
$4,020 USD
View
Price last confirmed 28 days ago
8 more retailers have this diamond
Prices start from $1,481 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.

B+
3.00ct Round
$1,481 USD