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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

E/SI1 • GIA 1558512133

Certificate GIA 1558512133

Diamond specifications and retailer prices

From $11,831 SGD
HK$72,300 HKD
As of October 30, 2026
Save $8,926 SGD (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $22,481 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 1558512133. Listed at 15 retailers as of October 29, 2026, with a 75% 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

1.51
Carat
E
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558512133
Dimensions11.64 × 5.87 × 3.72 mm
L/W Ratio1.98
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity, Indented Natural
Top View
11.64 mm5.87 mm1.51 ctE / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558512133
Side View
Table 60.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 63.5%

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 30
Current: $12,161 SGD|Low: $11,831 SGD|High: $21,319 SGD|Avg: $14,394 SGD|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 6$11,831 SGD
Retailer 1$12,161 SGD
Retailer 9$13,136 SGD
Retailer 8$13,772 SGD
Retailer 5$14,564 SGD
Retailer 7$14,592 SGD
Retailer 2$14,835 SGD
Retailer 4$18,243 SGD
Retailer 3$20,757 SGD

39 data points across 9 retailers

15 retailers$11,831 SGD to $20,757 SGD

A
Cheapest Retailer
-
$11,831 SGD
HK$72,300 HKD
A
Retailer 2
-
$12,161 SGD
₹905,937 INR
View
B+
Retailer 3
-
$12,534 SGD
A$15,084 AUD
View
Retailer 4
-
$13,136 SGD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$13,772 SGD
$10,773 USD
View
Retailer 6
-
$14,564 SGD
A$17,527 AUD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$14,592 SGD
$11,414 USD
View
Final sale: no returns
B+
Retailer 8
-
$14,835 SGD
£9,138 GBP
View
Retailer 9
-
$16,002 SGD
$12,517 USD
View
Price last confirmed 24 days ago
Retailer 10
-
$16,130 SGD
$12,617 USD
View
Price last confirmed 33 days ago
Retailer 11
-
$16,312 SGD
$12,760 USD
View
Price last confirmed 31 days ago
B
Retailer 12
-
$18,243 SGD
$14,270 USD
View
B
Retailer 13
-
$20,757 SGD
£12,785 GBP
View
Retailer 14
-
$22,303 SGD
$17,446 USD
View
Price last confirmed 28 days ago
Most Expensive
NZ Jewellers
ad8b1f53-a961-40b5-927b-82aed05985d4 · Sep 28
$22,481 SGD
$17,585 USD
View
Price last confirmed 34 days ago
14 more retailers have this diamond
Prices start from $11,831 SGDSave up to $8,926 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
1.51ct Marquise
$11,831 SGD