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Round|Natural|GIA

1.50ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 1515431729

Certificate GIA 1515431729

Diamond specifications and retailer prices

From $7,399 SGD
HK$45,100 HKD
As of October 29, 2026
Save $12,295 SGD (62%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $19,694 SGD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 1515431729. Listed at 24 retailers as of October 29, 2026, with prices from $7,399 to $19,694, a $12,295 spread on the same certified stone. Diamond Quarter lists it at $19,694. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 1515431729
Dimensions7.16 × 7.08 × 4.56 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Girdle conditionFaceted
Top View
7.16 mm7.08 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1515431729
Side View
Table 55.0%Crown 38.5°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $10,300 SGD|Low: $7,283 SGD|High: $16,698 SGD|Avg: $9,601 SGD|-1.2%
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 6$7,399 SGD
Retailer 7$7,536 SGD
Retailer 9$7,763 SGD
Retailer 16$7,888 SGD
Retailer 8$8,349 SGD
Retailer 10$8,349 SGD
Retailer 4$8,376 SGD
Retailer 3$9,045 SGD
Retailer 5$9,183 SGD
Retailer 12$9,348 SGD
Retailer 2$9,561 SGD
Retailer 21$9,561 SGD
Retailer 14$9,683 SGD
Retailer 17$9,882 SGD
Retailer 1$10,300 SGD
Retailer 13$10,344 SGD
Retailer 19$10,437 SGD
Retailer 18$11,105 SGD
Retailer 20$12,157 SGD
Retailer 15$13,989 SGD
Retailer 11$16,698 SGD

32 data points across 21 retailers

24 retailers$7,399 SGD to $19,694 SGD

Retailer 1
-
$7,202 SGD
$5,619 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$7,399 SGD
HK$45,100 HKD
View
A
Retailer 3
-
$7,536 SGD
$5,880 USD
View
A
Retailer 4
-
$7,763 SGD
$6,057 USD
View
A
Retailer 5
-
$7,888 SGD
$6,154 USD
View
A
Retailer 6
-
$8,349 SGD
$6,514 USD
View
B+
Retailer 7
-
$8,349 SGD
$6,514 USD
View
Final sale: no returns
A
Retailer 8
-
$8,376 SGD
$6,535 USD
View
A
Retailer 9
-
$9,045 SGD
$7,057 USD
View
A
Retailer 10
-
$9,183 SGD
$7,165 USD
View
A
Retailer 11
-
$9,348 SGD
£5,743 GBP
View
A
Retailer 12
-
$9,561 SGD
$7,460 USD
View
A
Retailer 13
-
$9,561 SGD
$7,460 USD
View
Retailer 14
-
$9,683 SGD
A$11,623 AUD
View
Price last confirmed 8 days ago
A
Retailer 15
-
$9,882 SGD
$7,710 USD
View
B+
Retailer 16
-
$10,300 SGD
£6,327 GBP
View
Retailer 17
-
$10,344 SGD
€7,686 EUR
View
Price last confirmed 7 days ago
B+
Retailer 18
-
$10,437 SGD
$8,143 USD
View
Retailer 19
-
$11,064 SGD
$8,632 USD
View
Price last confirmed 7 days ago
B+
Retailer 20
-
$11,105 SGD
$8,664 USD
View
B+
Retailer 21
-
$12,157 SGD
ZAR 153,238 ZAR
View
B+
Retailer 22
-
$13,989 SGD
£8,594 GBP
View
B
Retailer 23
-
$16,698 SGD
$13,028 USD
View
Most Expensive
B
Diamond Quarter
1.5SI1E1529E8EAN · Oct 29
$19,694 SGD
£12,099 GBP
View
23 more retailers have this diamond
Prices start from $7,399 SGDSave up to $12,295 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.

A
1.50ct Round
$7,399 SGD