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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 $12,725 SGD
$9,954 USD
As of October 29, 2026
Save $16,742 SGD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $29,467 SGD at Brilliant Earth · As of October 29, 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 $12,725 to $29,467, a $16,742 spread on the same certified stone. Brilliant Earth lists it at $29,467. 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: $29,467 SGD|Low: $10,387 SGD|High: $79,401 SGD|Avg: $23,685 SGD|-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$10,387 SGD
Retailer 14$12,725 SGD
Retailer 2$13,125 SGD
Retailer 4$13,234 SGD
Retailer 16$13,389 SGD
Retailer 5$14,671 SGD
Retailer 3$15,269 SGD
Retailer 12$15,758 SGD
Retailer 9$15,763 SGD
Retailer 11$16,159 SGD
Retailer 15$22,355 SGD
Retailer 7$25,642 SGD
Retailer 6$26,531 SGD
Brilliant Earth$29,467 SGD
Retailer 8$59,129 SGD
Retailer 13$79,401 SGD

38 data points across 16 retailers

13 retailers$12,725 SGD to $29,467 SGD

Retailer 1
-
$10,387 SGD
$8,125 USD
Price last confirmed 13 days ago
B+
Retailer 2
-
$12,725 SGD
$9,954 USD
View
B+
Retailer 3
-
$13,125 SGD
£8,084 GBP
View
B
Retailer 4
-
$13,234 SGD
$10,352 USD
View
B
Retailer 5
-
$13,389 SGD
$10,473 USD
View
B+
Retailer 6
-
$14,671 SGD
$11,476 USD
View
Final sale: no returns
B
Retailer 7
-
$15,269 SGD
$11,944 USD
View
B
Retailer 8
-
$15,758 SGD
$12,326 USD
View
B
Retailer 9
-
$15,763 SGD
$12,330 USD
View
B
Retailer 10
-
$16,159 SGD
$12,640 USD
View
B
Retailer 11
-
$22,355 SGD
$17,487 USD
View
Most Expensive
B
Brilliant Earth
15271331Y · Oct 29
$29,467 SGD
$23,050 USD
View
11 more retailers have this diamond
Prices start from $12,725 SGDSave up to $16,742 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+
15.20ct Round
$12,725 SGD