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Round|Natural|GIA

1.50ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6451465789

Certificate GIA 6451465789

Diamond specifications and retailer prices

From $10,240 SGD
$8,010 USD
As of October 25, 2026
Save $11,240 SGD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $21,480 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6451465789. Listed at 16 retailers as of October 25, 2026, with prices from $10,240 to $21,480, a $11,240 spread on the same certified stone. Diamond Quarter lists it at $21,480. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6451465789
Dimensions7.37 × 7.33 × 4.54 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Top View
7.37 mm7.33 mm1.50 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6451465789
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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: Oct 25
Current: $12,102 SGD|Low: $9,290 SGD|High: $17,621 SGD|Avg: $12,721 SGD|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4$10,240 SGD
Retailer 8$10,327 SGD
Retailer 5$11,148 SGD
Retailer 6$12,077 SGD
Retailer 1$12,102 SGD
Retailer 2$13,913 SGD
Retailer 7$14,672 SGD
Retailer 3$17,504 SGD

42 data points across 8 retailers

16 retailers$10,240 SGD to $21,480 SGD

A
Cheapest Retailer
-
$10,240 SGD
$8,010 USD
A
Retailer 2
-
$10,437 SGD
$8,164 USD
View
B+
Retailer 3
-
$11,148 SGD
$8,720 USD
View
B+
Retailer 4
-
$11,148 SGD
$8,720 USD
View
Final sale: no returns
B+
Retailer 5
-
$12,077 SGD
$9,447 USD
View
B+
Retailer 6
-
$12,102 SGD
£7,454 GBP
View
B+
Retailer 7
-
$12,262 SGD
$9,592 USD
View
B+
Retailer 8
-
$13,168 SGD
$10,300 USD
View
B+
Retailer 9
-
$13,168 SGD
$10,300 USD
View
B+
Retailer 10
-
$13,602 SGD
$10,640 USD
View
B+
Retailer 11
-
$13,913 SGD
€10,365 EUR
View
B+
Retailer 12
-
$13,935 SGD
$10,900 USD
View
Retailer 13
-
$14,672 SGD
$11,477 USD
View
Price last confirmed 7 days ago
B
Retailer 14
-
$17,504 SGD
£10,781 GBP
View
B
Retailer 15
-
$18,579 SGD
$14,533 USD
View
Most Expensive
B
Diamond Quarter
1.5SI2D648989CAN · Oct 29
$21,480 SGD
£13,230 GBP
View
15 more retailers have this diamond
Prices start from $10,240 SGDSave up to $11,240 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
$10,240 SGD