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Round|Natural|GIA

1.50ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2121672455

Certificate GIA 2121672455

Diamond specifications and retailer prices

From $11,849 SGD
$9,245 USD
As of October 25, 2026
Save $11,044 SGD (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $22,893 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2121672455. Listed at 19 retailers as of October 25, 2026, with prices from $11,849 to $22,893, a $11,044 spread on the same certified stone. Diamond Quarter lists it at $22,893. 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

1.50
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2121672455
Dimensions7.32 × 7.30 × 4.55 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.32 mm7.30 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2121672455
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.3%

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 25
Current: $14,303 SGD|Low: $11,111 SGD|High: $21,076 SGD|Avg: $15,690 SGD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 4$11,849 SGD
Retailer 5$13,334 SGD
Retailer 1$14,303 SGD
Retailer 2$16,102 SGD
Retailer 6$17,544 SGD
Retailer 3$20,936 SGD

41 data points across 6 retailers

19 retailers$11,849 SGD to $22,893 SGD

B+
Cheapest Retailer
-
$11,849 SGD
$9,245 USD
B+
Retailer 2
-
$12,142 SGD
$9,473 USD
View
B+
Retailer 3
-
$12,372 SGD
$9,653 USD
View
B+
Retailer 4
-
$12,741 SGD
CA$13,807 CAD
View
B
Retailer 5
-
$13,334 SGD
$10,403 USD
View
B
Retailer 6
-
$13,334 SGD
$10,403 USD
View
Final sale: no returns
B+
Retailer 7
-
$14,303 SGD
£8,787 GBP
View
B
Retailer 8
-
$14,445 SGD
$11,270 USD
View
B
Retailer 9
-
$14,668 SGD
$11,444 USD
View
B
Retailer 10
-
$15,402 SGD
$12,017 USD
View
B
Retailer 11
-
$15,598 SGD
$12,170 USD
View
B
Retailer 12
-
$15,598 SGD
$12,170 USD
View
B
Retailer 13
-
$16,102 SGD
€11,965 EUR
View
B
Retailer 14
-
$16,111 SGD
$12,570 USD
View
B
Retailer 15
-
$16,667 SGD
$13,004 USD
View
B
Retailer 16
-
$17,544 SGD
$13,688 USD
View
B
Retailer 17
-
$20,936 SGD
£12,862 GBP
View
B
Retailer 18
-
$22,223 SGD
$17,339 USD
View
Most Expensive
B
Diamond Quarter
1.5SI2E2155C50DN · Oct 29
$22,893 SGD
£14,064 GBP
View
18 more retailers have this diamond
Prices start from $11,849 SGDSave up to $11,044 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+
1.50ct Round
$11,849 SGD