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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 1558211257

Certificate GIA 1558211257

Diamond specifications and retailer prices

From €11,454 EUR
$12,796 USD
As of October 30, 2026
Save €7,188 EUR (39%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €18,641 EUR at NZ Jewellers · As of October 30, 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), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558211257. Listed at 13 retailers as of October 30, 2026, with prices from €11,454 to €18,641, a €7,188 spread on the same certified stone. NZ Jewellers lists it at €18,641. 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

1.51
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558211257
Dimensions11.60 × 5.94 × 3.77 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural, Knot, Natural
Top View
11.60 mm5.94 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558211257
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

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: €17,468 EUR|Low: €9,437 EUR|High: €17,678 EUR|Avg: €12,865 EUR|-0.1%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 8€9,437 EUR
Retailer 6€11,448 EUR
Retailer 15€11,454 EUR
Retailer 9€11,729 EUR
Retailer 14€11,830 EUR
Retailer 4€11,938 EUR
Retailer 13€12,005 EUR
Retailer 7€12,117 EUR
Retailer 16€12,124 EUR
Retailer 3€12,346 EUR
Retailer 10€12,514 EUR
Retailer 17€13,169 EUR
Retailer 5€13,549 EUR
Retailer 2€13,889 EUR
Retailer 12€14,092 EUR
Retailer 11€16,432 EUR
Retailer 1€17,468 EUR

39 data points across 17 retailers

13 retailers€11,454 EUR to €18,641 EUR

B+
Cheapest Retailer
-
€11,454 EUR
$12,796 USD
B
Retailer 2
-
€11,830 EUR
$13,217 USD
View
Final sale: no returns
B+
Retailer 3
-
€11,938 EUR
$13,337 USD
View
Retailer 4
-
€12,005 EUR
A$20,633 AUD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
€12,124 EUR
$13,545 USD
View
B+
Retailer 6
-
€12,514 EUR
£11,008 GBP
View
B+
Retailer 7
-
€13,169 EUR
$14,712 USD
View
B
Retailer 8
-
€13,374 EUR
$14,942 USD
View
B
Retailer 9
-
€13,889 EUR
$15,517 USD
View
B
Retailer 10
-
€14,092 EUR
View
B
Retailer 11
-
€16,432 EUR
ZAR 296,569 ZAR
View
B
Retailer 12
-
€17,468 EUR
£15,366 GBP
View
Most Expensive
B
NZ Jewellers
c4c34995-0942-4c95-a076-5438e9cfa13b · Oct 30
€18,641 EUR
$20,826 USD
View
12 more retailers have this diamond
Prices start from €11,454 EURSave up to €7,188 EUR

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+
1.51ct Marquise
€11,454 EUR