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Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 6455423519

Certificate GIA 6455423519

Diamond specifications and retailer prices

From $13,826 SGD
$10,811 USD
As of November 1, 2026
Save $10,768 SGD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $24,595 SGD at NZ Jewellers · As of November 3, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6455423519. Listed at 9 retailers as of November 1, 2026, with prices from $13,826 to $24,595, a $10,768 spread on the same certified stone. NZ Jewellers lists it at $24,595. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6455423519
Dimensions11.42 × 6.01 × 3.62 mm
L/W Ratio1.90
Top View
11.42 mm6.01 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6455423519
Side View
TableCrownGirdle: STK-VTKPavilionCulet: NoneDepth

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $24,595 SGD|Low: $11,392 SGD|High: $24,595 SGD|Avg: $16,492 SGD
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
November 2, 2026
Retailer 15$11,392 SGD
Retailer 14$13,826 SGD
Retailer 13$14,147 SGD
Retailer 3$14,671 SGD
Retailer 8$14,756 SGD
Retailer 12$14,756 SGD
Retailer 10$15,986 SGD
Retailer 9$16,232 SGD
Retailer 4$17,723 SGD
Retailer 5$17,751 SGD
Retailer 7$17,751 SGD
Retailer 2$17,959 SGD
Retailer 6$18,339 SGD
Retailer 11$18,446 SGD
NZ Jewellers$24,595 SGD

18 data points across 15 retailers

9 retailers$13,826 SGD to $24,595 SGD

B
Cheapest Retailer
-
$13,826 SGD
$10,811 USD
B
Retailer 2
-
$14,147 SGD
CA$15,364 CAD
View
C
Retailer 3
-
$14,756 SGD
$11,538 USD
View
Final sale: no returns
C
Retailer 4
-
$15,986 SGD
$12,500 USD
View
C
Retailer 5
-
$16,232 SGD
$12,692 USD
View
C
Retailer 6
-
$17,959 SGD
€13,374 EUR
View
Retailer 7
-
$18,446 SGD
$14,423 USD
View
Price last confirmed 57 days ago
C
Retailer 8
-
$18,446 SGD
$14,423 USD
View
Most Expensive
C
NZ Jewellers
044d2ac6-c33f-45ad-80ba-b023f12f0ed2 · Nov 3
$24,595 SGD
$19,231 USD
View
8 more retailers have this diamond
Prices start from $13,826 SGDSave up to $10,768 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
$13,826 SGD