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Marquise|Natural|GIA

1.50ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 6545615648

Certificate GIA 6545615648

Diamond specifications and retailer prices

From $7,411 SGD
As of November 5, 2026
Save $8,277 SGD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $15,688 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6545615648. Listed at 17 retailers as of November 5, 2026, with prices from $7,411 to $15,688, a $8,277 spread on the same certified stone. NZ Jewellers lists it at $15,688. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle44.06°
Pavilion angle39.52°
OriginNatural
Grading LabGIA
CertificateGIA 6545615648
Dimensions10.49 × 5.73 × 3.82 mm
L/W Ratio1.83
Top View
10.49 mm5.73 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6545615648
Side View
Table 60.0%Crown 44.06°Girdle: THN-VTKPavilion 39.52°Culet: NoneDepth 66.7%

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: Nov 5
Current: $15,688 SGD|Low: $7,411 SGD|High: $16,388 SGD|Avg: $10,498 SGD|-4.3%
NZ Jewellers
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
November 7, 2026
Retailer 4$7,411 SGD
Retailer 9$7,888 SGD
Retailer 6$8,498 SGD
Retailer 14$8,629 SGD
Retailer 2$8,757 SGD
Retailer 11$8,976 SGD
Retailer 10$9,206 SGD
Retailer 8$9,447 SGD
Retailer 16$9,806 SGD
Retailer 7$9,894 SGD
Retailer 15$9,894 SGD
Retailer 5$10,207 SGD
Retailer 3$10,227 SGD
Retailer 12$11,445 SGD
Retailer 13$13,036 SGD
NZ Jewellers$15,688 SGD

34 data points across 16 retailers

17 retailers$7,411 SGD to $15,688 SGD

B+
Cheapest Retailer
-
$7,411 SGD
B
Retailer 2
-
$7,888 SGD
View
B
Retailer 3
-
$8,498 SGD
View
B
Retailer 4
-
$8,629 SGD
View
B
Retailer 5
-
$8,757 SGD
View
B
Retailer 6
-
$8,976 SGD
View
B
Retailer 7
-
$9,206 SGD
View
Retailer 8
-
$9,447 SGD
View
Price last confirmed 16 days ago
B
Retailer 9
-
$9,806 SGD
View
B
Retailer 10
-
$9,894 SGD
View
B
Retailer 11
-
$9,894 SGD
View
B
Retailer 12
-
$10,207 SGD
View
B
Retailer 13
-
$10,227 SGD
View
Retailer 14
-
$10,796 SGD
View
Price last confirmed 15 days ago
B
Retailer 15
-
$11,445 SGD
View
B
Retailer 16
-
$13,036 SGD
View
Most Expensive
C
NZ Jewellers
a7829865-7af9-4f60-8bc9-b66253d97315 · Nov 5
$15,688 SGD
$12,241 USD
View
16 more retailers have this diamond
Prices start from $7,411 SGDSave up to $8,277 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 Marquise
$7,411 SGD