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Marquise|Natural|GIA

1.50ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 2556723774

Certificate GIA 2556723774

Diamond specifications and retailer prices

From $13,081 SGD
$10,232 USD
As of October 30, 2026
Save $9,640 SGD (42%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $24,116 SGD at NZ Jewellers · As of September 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556723774. Listed at 14 retailers as of October 29, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.84°
Pavilion angle37.92°
OriginNatural
Grading LabGIA
CertificateGIA 2556723774
Dimensions11.05 × 5.94 × 3.69 mm
L/W Ratio1.86
Culet sizeNone
Top View
11.05 mm5.94 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556723774
Side View
Table 58.0%Crown 40.84°Girdle: STK-VTKPavilion 37.92°Culet: NDepth 62.1%

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: Oct 30
Current: $17,551 SGD|Low: $13,081 SGD|High: $22,871 SGD|Avg: $16,475 SGD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 5$13,081 SGD
Retailer 9$13,868 SGD
Retailer 13$14,101 SGD
Retailer 10$15,157 SGD
Retailer 7$15,740 SGD
Retailer 6$15,804 SGD
Retailer 11$16,906 SGD
Retailer 3$16,990 SGD
Retailer 4$16,990 SGD
Retailer 1$17,551 SGD
Retailer 2$17,552 SGD
Retailer 12$17,827 SGD
Retailer 8$22,720 SGD

37 data points across 13 retailers

14 retailers$13,081 SGD to $22,720 SGD

B+
Cheapest Retailer
-
$13,081 SGD
$10,232 USD
B+
Retailer 2
-
$13,868 SGD
CA$15,067 CAD
View
B+
Retailer 3
-
$14,101 SGD
$11,031 USD
View
B+
Retailer 4
-
$15,157 SGD
$11,856 USD
View
B
Retailer 5
-
$15,740 SGD
$12,312 USD
View
B
Retailer 6
-
$15,804 SGD
£9,734 GBP
View
B
Retailer 7
-
$16,906 SGD
$13,224 USD
View
B
Retailer 8
-
$16,990 SGD
$13,290 USD
View
B
Retailer 9
-
$16,990 SGD
$13,290 USD
View
B
Retailer 10
-
$17,551 SGD
€13,075 EUR
View
B
Retailer 11
-
$17,552 SGD
$13,730 USD
View
B
Retailer 12
-
$17,827 SGD
$13,944 USD
View
B
Retailer 13
-
$22,720 SGD
£13,994 GBP
View
Most Expensive
NZ Jewellers
937fa684-7c9b-4df6-878c-ff4f2ebbe656 · Sep 30
$24,116 SGD
$18,864 USD
View
Price last confirmed 31 days ago
13 more retailers have this diamond
Prices start from $13,081 SGDSave up to $9,640 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
$13,081 SGD