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Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 2566506606

Certificate GIA 2566506606

Diamond specifications and retailer prices

From €8,118 EUR
SGD 12,304 SGD
As of November 2, 2026
Save €6,433 EUR (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €14,551 EUR at With Clarity · As of November 1, 2026
View at With Clarity

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566506606. Listed at 14 retailers as of November 1, 2026, with prices from €8,118 to €14,551, a €6,433 spread on the same certified stone. With Clarity lists it at €14,551. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.79°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 2566506606
Dimensions11.36 × 5.97 × 3.79 mm
L/W Ratio1.90
Culet sizeNone
Top View
11.36 mm5.97 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566506606
Side View
Table 57.0%Crown 36.79°Girdle: MED-THKPavilion 40.2°Culet: NDepth 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: Nov 2
Current: €10,373 EUR|Low: €8,118 EUR|High: €14,551 EUR|Avg: €10,148 EUR|+0.4%
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
With Clarity
November 2, 2026
Retailer 2€8,118 EUR
Retailer 12€8,522 EUR
Retailer 8€8,706 EUR
Retailer 3€8,744 EUR
Retailer 4€8,812 EUR
Retailer 11€8,975 EUR
Retailer 6€8,986 EUR
Retailer 5€10,356 EUR
Retailer 1€10,373 EUR
Retailer 10€10,456 EUR
Retailer 9€10,650 EUR
Retailer 7€11,968 EUR
Retailer 13€12,759 EUR
With Clarity€14,551 EUR

23 data points across 14 retailers

14 retailers€8,118 EUR to €14,551 EUR

B+
Cheapest Retailer
-
€8,118 EUR
SGD 12,304 SGD
B+
Retailer 2
-
€8,522 EUR
$9,558 USD
View
B+
Retailer 3
-
€8,706 EUR
$9,765 USD
View
B+
Retailer 4
-
€8,744 EUR
$9,807 USD
View
B+
Retailer 5
-
€8,812 EUR
$9,883 USD
View
Retailer 6
-
€8,975 EUR
$10,066 USD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
€8,986 EUR
£7,936 GBP
View
B
Retailer 8
-
€10,356 EUR
$11,615 USD
View
B
Retailer 9
-
€10,373 EUR
View
B
Retailer 10
-
€10,456 EUR
$11,727 USD
View
Retailer 11
-
€10,650 EUR
$11,945 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
€11,968 EUR
$13,423 USD
View
B
Retailer 13
-
€12,759 EUR
$14,311 USD
View
Most Expensive
B
With Clarity
2566506606 · Nov 1
€14,551 EUR
$16,320 USD
View
13 more retailers have this diamond
Prices start from €8,118 EURSave up to €6,433 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
€8,118 EUR