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Marquise|Natural|GIA

1.50ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 2556989894

Certificate GIA 2556989894

Diamond specifications and retailer prices

From $9,000 SGD
£5,543 GBP
As of October 31, 2026
Save $8,318 SGD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $17,318 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556989894. Listed at 9 retailers as of October 30, 2026, with prices from $9,000 to $17,318, a $8,318 spread on the same certified stone. NZ Jewellers lists it at $17,318. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle41.77°
Pavilion angle40.99°
OriginNatural
Grading LabGIA
CertificateGIA 2556989894
Dimensions10.49 × 5.87 × 4.02 mm
L/W Ratio1.79
Girdle conditionExtremely Thick
Key to symbols
Crystal, Needle, Indented Natural, Natural
Top View
10.49 mm5.87 mm1.50 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2556989894
Side View
Table 56.0%Crown 41.77°Girdle: MED-ETKPavilion 40.99°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $17,318 SGD|Low: $8,946 SGD|High: $18,307 SGD|Avg: $11,910 SGD|-5.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 3$9,000 SGD
Retailer 2$9,268 SGD
Retailer 8$9,268 SGD
Retailer 4$9,717 SGD
Retailer 9$10,205 SGD
Retailer 6$10,354 SGD
Retailer 5$10,514 SGD
Retailer 7$14,508 SGD
NZ Jewellers$17,318 SGD

40 data points across 9 retailers

9 retailers$9,000 SGD to $17,318 SGD

A
Cheapest Retailer
-
$9,000 SGD
£5,543 GBP
A
Retailer 2
-
$9,268 SGD
$7,250 USD
View
A
Retailer 3
-
$9,268 SGD
$7,250 USD
View
A
Retailer 4
-
$9,717 SGD
£5,985 GBP
View
Retailer 5
-
$10,205 SGD
A$12,281 AUD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$10,354 SGD
$8,099 USD
View
A
Retailer 7
-
$10,514 SGD
$8,224 USD
View
B+
Retailer 8
-
$14,508 SGD
£8,936 GBP
View
Most Expensive
B
NZ Jewellers
29e4c08f-86f9-410e-ae17-cd1c8a797e97 · Oct 30
$17,318 SGD
$13,547 USD
View
8 more retailers have this diamond
Prices start from $9,000 SGDSave up to $8,318 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.

A
1.50ct Marquise
$9,000 SGD