Marquise|Natural|IGI

1.50ct G SI1 Marquise Natural Diamond

VG • G/SI1 • IGI 814628506

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 814628506

Diamond specifications and retailer prices

From $6,927 SGD
₹516,043 INR
As of November 2, 2026
Save $5,842 SGD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $15,324 SGD at NZ Jewellers · As of September 20, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 814628506. Listed at 15 retailers as of November 1, 2026, with a 84% 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
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle34.6°
OriginNatural
Grading LabIGI
CertificateIGI 814628506
Dimensions11.43 × 6.18 × 3.44 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
11.43 mm6.18 mm1.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 814628506
Side View
Table 61.0%Crown 34.9°Girdle: MED-VTKPavilion 34.6°Culet: NoneDepth 55.7%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $6,927 SGD|Low: $6,913 SGD|High: $12,838 SGD|Avg: $9,112 SGD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 1$6,927 SGD
Retailer 2$7,991 SGD
Retailer 11$8,201 SGD
Retailer 12$8,476 SGD
Retailer 5$8,633 SGD
Retailer 7$8,888 SGD
Retailer 3$9,110 SGD
Retailer 10$9,243 SGD
Retailer 4$9,369 SGD
Retailer 6$9,457 SGD
Retailer 9$11,258 SGD
Retailer 8$12,769 SGD

22 data points across 12 retailers

15 retailers$6,927 SGD to $12,769 SGD

A
Cheapest Retailer
-
$6,927 SGD
₹516,043 INR
A
Retailer 2
-
$7,991 SGD
$6,251 USD
View
A
Retailer 3
-
$8,201 SGD
$6,415 USD
View
B+
Retailer 4
-
$8,476 SGD
$6,630 USD
View
A
Retailer 5
-
$8,633 SGD
£5,317 GBP
View
A
Retailer 6
-
$8,888 SGD
£5,474 GBP
View
B+
Retailer 7
-
$9,110 SGD
$7,126 USD
View
Retailer 8
-
$9,162 SGD
$7,167 USD
View
Price last confirmed 40 days ago
B+
Retailer 9
-
$9,243 SGD
$7,230 USD
View
B+
Retailer 10
-
$9,369 SGD
$7,329 USD
View
A
Retailer 11
-
$9,457 SGD
€7,045 EUR
View
Retailer 12
-
$10,572 SGD
$8,270 USD
View
Price last confirmed 41 days ago
B+
Retailer 13
-
$11,258 SGD
ZAR 142,262 ZAR
View
B
Retailer 14
-
$12,769 SGD
£7,865 GBP
View
Most Expensive
NZ Jewellers
88e37217-5790-4b88-998b-c1105d12e8cf · Sep 20
$15,324 SGD
$11,987 USD
View
Price last confirmed 42 days ago
14 more retailers have this diamond
Prices start from $6,927 SGDSave up to $5,842 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
$6,927 SGD