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Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6452477908

Certificate GIA 6452477908

Diamond specifications and retailer prices

From $6,741 SGD
As of November 6, 2026
Save $8,332 SGD (55%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $15,074 SGD at Diamond Quarter · As of November 5, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6452477908. Listed at 23 retailers as of November 5, 2026, with prices from $6,741 to $15,074, a $8,332 spread on the same certified stone. Diamond Quarter lists it at $15,074. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6452477908
Dimensions7.33 × 7.28 × 4.51 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.33 mm7.28 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6452477908
Side View
Table 62.0%Crown 33°Girdle: ThickPavilion 41.6°Culet: NoneDepth 61.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $9,925 SGD|Low: $6,741 SGD|High: $15,061 SGD|Avg: $9,421 SGD|-0.8%
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
November 6, 2026
Retailer 15$6,741 SGD
Retailer 4$7,140 SGD
Retailer 9$7,529 SGD
Retailer 6$7,587 SGD
Retailer 16$8,036 SGD
Retailer 2$8,159 SGD
Retailer 8$8,159 SGD
Retailer 17$8,159 SGD
Retailer 11$8,494 SGD
Retailer 3$8,741 SGD
Retailer 5$9,413 SGD
Retailer 10$9,702 SGD
Retailer 14$9,807 SGD
Retailer 1$9,925 SGD
Retailer 18$9,925 SGD
Retailer 12$10,987 SGD
Retailer 13$13,233 SGD
Retailer 7$15,061 SGD

34 data points across 18 retailers

23 retailers$6,741 SGD to $15,074 SGD

A
Cheapest Retailer
-
$6,741 SGD
Retailer 2
-
$7,008 SGD
View
Price last confirmed 82 days ago
B+
Retailer 3
-
$7,115 SGD
View
B+
Retailer 4
-
$7,140 SGD
View
B+
Retailer 5
-
$7,529 SGD
View
Final sale: no returns
B+
Retailer 6
-
$7,587 SGD
View
B+
Retailer 7
-
$8,036 SGD
View
B+
Retailer 8
-
$8,159 SGD
View
Retailer 9
-
$8,159 SGD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$8,159 SGD
View
B+
Retailer 11
-
$8,494 SGD
View
Retailer 12
-
$8,741 SGD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$8,953 SGD
View
B
Retailer 14
-
$9,213 SGD
View
B
Retailer 15
-
$9,413 SGD
View
B+
Retailer 16
-
$9,702 SGD
View
B+
Retailer 17
-
$9,807 SGD
View
Retailer 18
-
$9,925 SGD
View
Price last confirmed 14 days ago
B+
Retailer 19
-
$9,925 SGD
View
B
Retailer 20
-
$10,987 SGD
View
B
Retailer 21
-
$13,233 SGD
View
B
Retailer 22
-
$15,061 SGD
View
Most Expensive
B
Diamond Quarter
1.5SI1H6408683CN · Nov 5
$15,074 SGD
£9,261 GBP
View
22 more retailers have this diamond
Prices start from $6,741 SGDSave up to $8,332 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
$6,741 SGD