CaratHunter
Plans
Marquise|Natural|GIA

1.51ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 1558832149

Certificate GIA 1558832149

Diamond specifications and retailer prices

From €5,591 EUR
SGD 8,474 SGD
As of November 1, 2026
Save €3,588 EUR (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €9,179 EUR at Helzberg Diamonds · As of November 2, 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 H 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 1558832149. Listed at 12 retailers as of November 1, 2026, with prices from €5,591 to €9,179, a €3,588 spread on the same certified stone. Helzberg Diamonds lists it at €9,179. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.29°
Pavilion angle40.19°
OriginNatural
Grading LabGIA
CertificateGIA 1558832149
Dimensions11.14 × 5.89 × 3.80 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.14 mm5.89 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558832149
Side View
Table 60.0%Crown 39.29°Girdle: STK-VTKPavilion 40.19°Culet: NoneDepth 64.4%

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: €9,179 EUR|Low: €5,591 EUR|High: €9,587 EUR|Avg: €6,957 EUR|-4.3%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8€5,591 EUR
Retailer 4€5,707 EUR
Retailer 9€5,820 EUR
Retailer 10€5,917 EUR
Retailer 7€5,998 EUR
Retailer 5€6,170 EUR
Retailer 3€6,994 EUR
Retailer 11€7,043 EUR
Retailer 12€7,100 EUR
Retailer 2€7,124 EUR
Retailer 6€7,926 EUR
Helzberg Diamonds€9,179 EUR

32 data points across 12 retailers

12 retailers€5,591 EUR to €9,179 EUR

A
Cheapest Retailer
-
€5,591 EUR
SGD 8,474 SGD
A
Retailer 2
-
€5,707 EUR
$6,401 USD
View
A
Retailer 3
-
€5,820 EUR
SGD 8,822 SGD
View
A
Retailer 4
-
€5,917 EUR
$6,636 USD
View
A
Retailer 5
-
€5,998 EUR
$6,727 USD
View
A
Retailer 6
-
€6,170 EUR
£5,449 GBP
View
B+
Retailer 7
-
€6,994 EUR
$7,844 USD
View
B+
Retailer 8
-
€7,043 EUR
$7,899 USD
View
B+
Retailer 9
-
€7,100 EUR
$7,963 USD
View
B+
Retailer 10
-
€7,124 EUR
View
B+
Retailer 11
-
€7,926 EUR
$8,890 USD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLOOJIHKP · Nov 2
€9,179 EUR
$10,295 USD
View
11 more retailers have this diamond
Prices start from €5,591 EURSave up to €3,588 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
€5,591 EUR