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Marquise|Natural|GIA

1.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2556380273

Certificate GIA 2556380273

Diamond specifications and retailer prices

From €5,839 EUR
$6,549 USD
As of October 30, 2026
Save €4,515 EUR (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €10,354 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556380273. Listed at 14 retailers as of October 29, 2026, with prices from €5,839 to €10,354, a €4,515 spread on the same certified stone. MOH London lists it at €10,354. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2556380273
Dimensions11.18 × 5.86 × 3.78 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Top View
11.18 mm5.86 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2556380273
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.6%

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: €10,354 EUR|Low: €5,664 EUR|High: €10,423 EUR|Avg: €7,115 EUR|-0.7%
MOH London
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
Retailer 18
October 30, 2026
Retailer 18€5,839 EUR
Retailer 8€5,881 EUR
Retailer 10€6,009 EUR
Retailer 9€6,084 EUR
Retailer 4€6,180 EUR
Retailer 17€6,180 EUR
Retailer 3€6,231 EUR
Retailer 5€6,797 EUR
Retailer 11€6,974 EUR
Retailer 2€7,230 EUR
Retailer 13€7,391 EUR
Retailer 15€7,391 EUR
Retailer 14€7,632 EUR
Retailer 6€7,656 EUR
Retailer 16€7,725 EUR
Retailer 12€8,062 EUR
Retailer 7€8,139 EUR
MOH London€10,354 EUR

22 data points across 18 retailers

14 retailers€5,839 EUR to €10,354 EUR

B+
Cheapest Retailer
-
€5,839 EUR
$6,549 USD
B+
Retailer 2
-
€6,180 EUR
$6,931 USD
View
Final sale: no returns
Retailer 3
-
€6,180 EUR
$6,931 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
€6,231 EUR
$6,989 USD
View
B+
Retailer 5
-
€6,797 EUR
$7,624 USD
View
B+
Retailer 6
-
€6,974 EUR
£6,159 GBP
View
B+
Retailer 7
-
€7,230 EUR
£6,385 GBP
View
B
Retailer 8
-
€7,391 EUR
$8,290 USD
View
B
Retailer 9
-
€7,391 EUR
$8,290 USD
View
B
Retailer 10
-
€7,632 EUR
$8,560 USD
View
B
Retailer 11
-
€7,725 EUR
$8,664 USD
View
B
Retailer 12
-
€8,062 EUR
View
Retailer 13
-
€8,139 EUR
$9,129 USD
View
Price last confirmed 19 days ago
Most Expensive
B
MOH London
1FA2D8523 · Oct 29
€10,354 EUR
£9,144 GBP
View
13 more retailers have this diamond
Prices start from €5,839 EURSave up to €4,515 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+
1.50ct Marquise
€5,839 EUR