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Round|Lab Grown|GIA

15.20ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 5473896839

Certificate GIA 5473896839

Diamond specifications and retailer prices

From €8,910 EUR
$9,954 USD
As of October 29, 2026
Save €11,722 EUR (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €20,632 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.2ct lab-grown round diamond

This 15.2ct lab-grown round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5473896839. Listed at 13 retailers as of October 29, 2026, with prices from €8,910 to €20,632, a €11,722 spread on the same certified stone. Brilliant Earth lists it at €20,632. 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

15.20
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 5473896839
Dimensions16.13 × 16.02 × 9.68 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
16.13 mm16.02 mm15.20 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5473896839
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.2%

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: Oct 29
Current: €20,632 EUR|Low: €7,273 EUR|High: €55,594 EUR|Avg: €16,583 EUR|-3.0%
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
October 30, 2026
Retailer 10€7,273 EUR
Retailer 14€8,910 EUR
Retailer 2€9,190 EUR
Retailer 4€9,266 EUR
Retailer 16€9,374 EUR
Retailer 5€10,272 EUR
Retailer 3€10,691 EUR
Retailer 12€11,033 EUR
Retailer 9€11,036 EUR
Retailer 11€11,314 EUR
Retailer 15€15,652 EUR
Retailer 7€17,953 EUR
Retailer 6€18,576 EUR
Brilliant Earth€20,632 EUR
Retailer 8€41,400 EUR
Retailer 13€55,594 EUR

38 data points across 16 retailers

13 retailers€8,910 EUR to €20,632 EUR

Retailer 1
-
€7,273 EUR
$8,125 USD
Price last confirmed 13 days ago
B+
Retailer 2
-
€8,910 EUR
$9,954 USD
View
B+
Retailer 3
-
€9,190 EUR
£8,084 GBP
View
B
Retailer 4
-
€9,266 EUR
$10,352 USD
View
B
Retailer 5
-
€9,374 EUR
$10,473 USD
View
B+
Retailer 6
-
€10,272 EUR
$11,476 USD
View
Final sale: no returns
B
Retailer 7
-
€10,691 EUR
$11,944 USD
View
B
Retailer 8
-
€11,033 EUR
$12,326 USD
View
B
Retailer 9
-
€11,036 EUR
$12,330 USD
View
B
Retailer 10
-
€11,314 EUR
$12,640 USD
View
B
Retailer 11
-
€15,652 EUR
$17,487 USD
View
Most Expensive
B
Brilliant Earth
15271331Y · Oct 31
€20,632 EUR
$23,050 USD
View
11 more retailers have this diamond
Prices start from €8,910 EURSave up to €11,722 EUR

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+
15.20ct Round
€8,910 EUR