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Marquise|Natural|GIA

1.51ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 7566682513

Certificate GIA 7566682513

Diamond specifications and retailer prices

From €5,778 EUR
SGD 8,757 SGD
As of November 1, 2026
Save €3,547 EUR (38%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €9,324 EUR at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.51ct natural marquise diamond

This 1.51ct 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 7566682513. Listed at 14 retailers as of November 1, 2026, with prices from €5,778 to €9,324, a €3,547 spread on the same certified stone. Helzberg Diamonds lists it at €9,324. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.21°
Pavilion angle38.5°
OriginNatural
Grading LabGIA
CertificateGIA 7566682513
Dimensions11.51 × 6.08 × 3.55 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.51 mm6.08 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566682513
Side View
Table 61.0%Crown 34.21°Girdle: MED-THKPavilion 38.5°Culet: NDepth 58.3%

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: Nov 1
Current: €9,324 EUR|Low: €5,778 EUR|High: €9,324 EUR|Avg: €6,990 EUR
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 11€5,778 EUR
Retailer 5€5,993 EUR
Retailer 10€6,032 EUR
Retailer 8€6,114 EUR
Retailer 9€6,197 EUR
Retailer 6€6,374 EUR
Retailer 3€6,446 EUR
Retailer 4€7,213 EUR
Retailer 12€7,267 EUR
Retailer 13€7,312 EUR
Retailer 2€7,359 EUR
Retailer 7€8,190 EUR
Helzberg Diamonds€9,324 EUR

12 data points across 13 retailers

14 retailers€5,778 EUR to €9,324 EUR

A
Cheapest Retailer
-
€5,778 EUR
SGD 8,757 SGD
B+
Retailer 2
-
€5,993 EUR
$6,722 USD
View
B+
Retailer 3
-
€6,014 EUR
SGD 9,116 SGD
View
B+
Retailer 4
-
€6,032 EUR
$6,765 USD
View
B+
Retailer 5
-
€6,114 EUR
$6,857 USD
View
B+
Retailer 6
-
€6,197 EUR
$6,951 USD
View
B+
Retailer 7
-
€6,374 EUR
£5,629 GBP
View
B+
Retailer 8
-
€6,446 EUR
$7,230 USD
View
B+
Retailer 9
-
€7,213 EUR
$8,090 USD
View
B+
Retailer 10
-
€7,267 EUR
$8,151 USD
View
B+
Retailer 11
-
€7,312 EUR
$8,201 USD
View
B+
Retailer 12
-
€7,359 EUR
View
B
Retailer 13
-
€8,190 EUR
$9,186 USD
View
Most Expensive
B
Helzberg Diamonds
XZRNLMMMOILHJ · Nov 1
€9,324 EUR
$10,458 USD
View
13 more retailers have this diamond
Prices start from €5,778 EURSave up to €3,547 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.

A
1.51ct Marquise
€5,778 EUR