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Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 1558626518

Certificate GIA 1558626518

Diamond specifications and retailer prices

From $9,029 SGD
$7,060 USD
As of November 1, 2026
Save $11,387 SGD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $20,416 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 1558626518. Listed at 13 retailers as of November 1, 2026, with prices from $9,029 to $20,416, a $11,387 spread on the same certified stone. NZ Jewellers lists it at $20,416. 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
Crown angle38.21°
Pavilion angle42.73°
OriginNatural
Grading LabGIA
CertificateGIA 1558626518
Dimensions10.66 × 6.03 × 3.95 mm
L/W Ratio1.77
Girdle conditionVery Thick
Culet sizeNone
Key to symbols
Feather, Cavity, Cloud, Needle, Indented Natural
Top View
10.66 mm6.03 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558626518
Side View
Table 67.0%Crown 38.21°Girdle: SLI-VTKPavilion 42.73°Culet: NDepth 65.5%

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 1
Current: $20,416 SGD|Low: $9,029 SGD|High: $20,416 SGD|Avg: $12,580 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
November 2, 2026
Retailer 8$9,029 SGD
Retailer 12$9,558 SGD
Retailer 11$10,167 SGD
Retailer 10$10,207 SGD
Retailer 3$10,208 SGD
Retailer 7$10,612 SGD
Retailer 4$11,059 SGD
Retailer 13$11,229 SGD
Retailer 9$12,208 SGD
Retailer 5$12,760 SGD
Retailer 2$13,333 SGD
Retailer 6$17,012 SGD
NZ Jewellers$20,416 SGD

32 data points across 13 retailers

13 retailers$9,029 SGD to $20,416 SGD

B+
Cheapest Retailer
-
$9,029 SGD
$7,060 USD
Retailer 2
-
$9,558 SGD
$7,474 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$10,167 SGD
$7,950 USD
View
B+
Retailer 4
-
$10,207 SGD
$7,981 USD
View
Final sale: no returns
B+
Retailer 5
-
$10,208 SGD
$7,982 USD
View
B+
Retailer 6
-
$10,612 SGD
$8,298 USD
View
B
Retailer 7
-
$11,059 SGD
$8,647 USD
View
B
Retailer 8
-
$11,229 SGD
$8,780 USD
View
B
Retailer 9
-
$12,208 SGD
$9,546 USD
View
B
Retailer 10
-
$12,760 SGD
$9,977 USD
View
B
Retailer 11
-
$13,333 SGD
€9,929 EUR
View
B
Retailer 12
-
$17,012 SGD
£10,474 GBP
View
Most Expensive
C
NZ Jewellers
420b6be4-ce89-46d9-b133-d4011d17c83a · Nov 3
$20,416 SGD
$15,964 USD
View
12 more retailers have this diamond
Prices start from $9,029 SGDSave up to $11,387 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
$9,029 SGD