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 $13,905 CAD

$9,954 USD

As of October 29, 2026

Save $18,294 CAD (57%) vs most expensive(unlock to see where)

13 retailers carry this diamond

Most expensive: $32,199 CAD 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 $13,905 to $32,199, a $18,294 spread on the same certified stone. Brilliant Earth lists it at $32,199. 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

Color

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%

View GIA Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 5473896839

Side View

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: $32,199 CAD|Low: $11,350 CAD|High: $86,761 CAD|Avg: $25,881 CAD|-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$11,350 CAD

Retailer 14$13,905 CAD

Retailer 2$14,342 CAD

Retailer 4$14,461 CAD

Retailer 16$14,630 CAD

Retailer 5$16,031 CAD

Retailer 3$16,685 CAD

Retailer 12$17,218 CAD

Retailer 9$17,224 CAD

Retailer 11$17,657 CAD

Retailer 15$24,428 CAD

Retailer 7$28,018 CAD

Retailer 6$28,990 CAD

Brilliant Earth$32,199 CAD

Retailer 8$64,610 CAD

Retailer 13$86,761 CAD

38 data points across 16 retailers

13 retailers$13,905 CAD to $32,199 CAD

Retailer 1

$11,350 CAD

$8,125 USD

Price last confirmed 13 days ago

B+

Retailer 2

$13,905 CAD

$9,954 USD

View

B+

Retailer 3

$14,342 CAD

£8,084 GBP

View

Retailer 4

$14,461 CAD

$10,352 USD

View

Retailer 5

$14,630 CAD

$10,473 USD

View

B+

Retailer 6

$16,031 CAD

$11,476 USD

View

Final sale: no returns

Retailer 7

$16,685 CAD

$11,944 USD

View

Retailer 8

$17,218 CAD

$12,326 USD

View

Retailer 9

$17,224 CAD

$12,330 USD

View

Retailer 10

$17,657 CAD

$12,640 USD

View

Retailer 11

$24,428 CAD

$17,487 USD

View

Most Expensive

Brilliant Earth

15271331Y · Oct 31

$32,199 CAD

$23,050 USD

View

11 more retailers have this diamond

Prices start from $13,905 CADSave up to $18,294 CAD

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.

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