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Marquise|Natural|GIA

1.50ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 2554854633

Certificate GIA 2554854633

Diamond specifications and retailer prices

From $8,671 SGD
$6,780 USD
As of November 1, 2026
Save $10,271 SGD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $18,942 SGD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2554854633. Listed at 15 retailers as of October 30, 2026, with prices from $8,671 to $18,942, a $10,271 spread on the same certified stone. NZ Jewellers lists it at $18,942. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554854633
Dimensions13.08 × 5.79 × 3.32 mm
L/W Ratio2.26
Culet sizeNone
Top View
13.08 mm5.79 mm1.50 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554854633
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 57.3%

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: $18,942 SGD|Low: $8,671 SGD|High: $18,942 SGD|Avg: $11,265 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 11$8,671 SGD
Retailer 15$8,865 SGD
Retailer 14$8,868 SGD
Retailer 13$9,470 SGD
Retailer 3$9,550 SGD
Retailer 6$10,089 SGD
Retailer 4$10,261 SGD
Retailer 12$10,418 SGD
Retailer 9$10,470 SGD
Retailer 2$11,047 SGD
Retailer 5$11,839 SGD
Retailer 8$12,372 SGD
Retailer 7$12,472 SGD
Retailer 10$15,784 SGD
NZ Jewellers$18,942 SGD

33 data points across 15 retailers

15 retailers$8,671 SGD to $18,942 SGD

B+
Cheapest Retailer
-
$8,671 SGD
$6,780 USD
B+
Retailer 2
-
$8,865 SGD
$6,932 USD
View
B+
Retailer 3
-
$8,868 SGD
$6,934 USD
View
Retailer 4
-
$9,470 SGD
$7,405 USD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$9,550 SGD
$7,467 USD
View
B
Retailer 6
-
$10,089 SGD
$7,889 USD
View
B
Retailer 7
-
$10,261 SGD
$8,023 USD
View
B
Retailer 8
-
$10,418 SGD
$8,146 USD
View
B
Retailer 9
-
$10,470 SGD
£6,446 GBP
View
B
Retailer 10
-
$11,047 SGD
£6,801 GBP
View
B
Retailer 11
-
$11,839 SGD
$9,257 USD
View
B
Retailer 12
-
$12,372 SGD
€9,213 EUR
View
Retailer 13
-
$12,472 SGD
$9,752 USD
View
Price last confirmed 18 days ago
B
Retailer 14
-
$15,784 SGD
£9,718 GBP
View
Most Expensive
C
NZ Jewellers
150c9ee6-7095-4d96-b34d-863aac97d91e · Oct 30
$18,942 SGD
$14,811 USD
View
14 more retailers have this diamond
Prices start from $8,671 SGDSave up to $10,271 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
$8,671 SGD