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Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6562180528

Certificate GIA 6562180528

Diamond specifications and retailer prices

From $5,717 SGD
As of November 5, 2026
Save $6,012 SGD (51%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,729 SGD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 6562180528. Listed at 9 retailers as of November 5, 2026, with prices from $5,717 to $11,729, a $6,012 spread on the same certified stone. Wholesale Diamonds Direct lists it at $11,729. 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 angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6562180528
Dimensions7.32 × 4.46 × 4.46 mm
L/W Ratio1.64
Culet sizeNone
Top View
7.32 mm4.46 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562180528
Side View
Table 60.0%Crown 34.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 60.8%

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 5
Current: $5,717 SGD|Low: $5,686 SGD|High: $12,672 SGD|Avg: $8,166 SGD|-8.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 5, 2026
Retailer 1$5,717 SGD
Retailer 6$6,393 SGD
Retailer 4$6,839 SGD
Retailer 5$7,046 SGD
Retailer 3$7,168 SGD
Retailer 2$7,982 SGD
Retailer 8$8,025 SGD
Retailer 7$10,888 SGD
Wholesale Diamonds Direct$11,729 SGD

42 data points across 9 retailers

9 retailers$5,717 SGD to $11,729 SGD

A
Cheapest Retailer
-
$5,717 SGD
A
Retailer 2
-
$6,393 SGD
View
A
Retailer 3
-
$6,839 SGD
View
B+
Retailer 4
-
$7,046 SGD
View
A
Retailer 5
-
$7,168 SGD
View
B+
Retailer 6
-
$7,982 SGD
View
B+
Retailer 7
-
$8,025 SGD
View
B
Retailer 8
-
$10,888 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
323485686 · Nov 6
$11,729 SGD
$9,152 USD
View
8 more retailers have this diamond
Prices start from $5,717 SGDSave up to $6,012 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
$5,717 SGD