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Marquise|Natural|GIA

1.00ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 3555909668

Certificate GIA 3555909668

Diamond specifications and retailer prices

From €2,437 EUR
$2,734 USD
As of October 31, 2026
Save €2,197 EUR (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €4,634 EUR at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555909668. Listed at 15 retailers as of October 31, 2026, with prices from €2,437 to €4,634, a €2,197 spread on the same certified stone. Helzberg Diamonds lists it at €4,634. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
G
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.66°
Pavilion angle38.05°
OriginNatural
Grading LabGIA
CertificateGIA 3555909668
Dimensions9.65 × 5.19 × 3.17 mm
L/W Ratio1.86
Culet sizeNone
Top View
9.65 mm5.19 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555909668
Side View
Table 59.0%Crown 40.66°Girdle: STK-VTKPavilion 38.05°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €4,634 EUR|Low: €2,437 EUR|High: €4,813 EUR|Avg: €3,200 EUR|-3.7%
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
Retailer 14
Retailer 15
November 2, 2026
Retailer 10€2,437 EUR
Retailer 15€2,483 EUR
Retailer 7€2,593 EUR
Retailer 11€2,627 EUR
Retailer 12€2,636 EUR
Retailer 8€2,850 EUR
Retailer 5€2,936 EUR
Retailer 3€3,136 EUR
Retailer 13€3,138 EUR
Retailer 4€3,213 EUR
Retailer 2€3,255 EUR
Retailer 9€3,381 EUR
Retailer 14€4,110 EUR
Retailer 6€4,377 EUR
Helzberg Diamonds€4,634 EUR

34 data points across 15 retailers

15 retailers€2,437 EUR to €4,634 EUR

A
Cheapest Retailer
-
€2,437 EUR
$2,734 USD
A
Retailer 2
-
€2,483 EUR
SGD 3,763 SGD
View
B+
Retailer 3
-
€2,593 EUR
$2,908 USD
View
B+
Retailer 4
-
€2,627 EUR
$2,947 USD
View
A
Retailer 5
-
€2,636 EUR
$2,956 USD
View
B+
Retailer 6
-
€2,850 EUR
£2,517 GBP
View
B+
Retailer 7
-
€2,936 EUR
SGD 4,450 SGD
View
B+
Retailer 8
-
€3,136 EUR
$3,517 USD
View
B+
Retailer 9
-
€3,138 EUR
$3,520 USD
View
B+
Retailer 10
-
€3,213 EUR
$3,604 USD
View
B+
Retailer 11
-
€3,255 EUR
View
B+
Retailer 12
-
€3,381 EUR
$3,792 USD
View
B
Retailer 13
-
€4,110 EUR
$4,610 USD
View
B
Retailer 14
-
€4,377 EUR
$4,909 USD
View
Most Expensive
B
Helzberg Diamonds
XZRJLLLPGPMMO · Nov 1
€4,634 EUR
$5,198 USD
View
14 more retailers have this diamond
Prices start from €2,437 EURSave up to €2,197 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
1.00ct Marquise
€2,437 EUR