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Marquise|Natural|GIA

1.02ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 1558370658

Certificate GIA 1558370658

Diamond specifications and retailer prices

From €1,359 EUR
SGD 2,060 SGD
As of October 31, 2026
Save €1,119 EUR (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €2,478 EUR at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1558370658. Listed at 12 retailers as of October 31, 2026, with prices from €1,359 to €2,478, a €1,119 spread on the same certified stone. Helzberg Diamonds lists it at €2,478. 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

1.02
Carat
I
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.56°
Pavilion angle37.51°
OriginNatural
Grading LabGIA
CertificateGIA 1558370658
Dimensions10.27 × 5.47 × 3.14 mm
L/W Ratio1.88
Culet sizeNone
Top View
10.27 mm5.47 mm1.02 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1558370658
Side View
Table 61.0%Crown 38.56°Girdle: THN-THKPavilion 37.51°Culet: NoneDepth 57.4%

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: Oct 31
Current: €2,478 EUR|Low: €1,359 EUR|High: €2,578 EUR|Avg: €1,751 EUR|-3.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8€1,359 EUR
Retailer 7€1,382 EUR
Retailer 6€1,382 EUR
Retailer 11€1,504 EUR
Retailer 2€1,535 EUR
Retailer 4€1,655 EUR
Retailer 9€1,666 EUR
Retailer 10€1,842 EUR
Retailer 5€1,947 EUR
Retailer 3€2,279 EUR
Helzberg Diamonds€2,478 EUR

35 data points across 11 retailers

12 retailers€1,359 EUR to €2,478 EUR

A
Cheapest Retailer
-
€1,359 EUR
SGD 2,060 SGD
A
Retailer 2
-
€1,382 EUR
$1,550 USD
View
A
Retailer 3
-
€1,382 EUR
$1,550 USD
View
A
Retailer 4
-
€1,504 EUR
SGD 2,280 SGD
View
A
Retailer 5
-
€1,535 EUR
£1,356 GBP
View
A
Retailer 6
-
€1,655 EUR
$1,856 USD
View
B+
Retailer 7
-
€1,666 EUR
$1,869 USD
View
B+
Retailer 8
-
€1,736 EUR
$1,947 USD
View
B+
Retailer 9
-
€1,842 EUR
$2,067 USD
View
A
Retailer 10
-
€1,947 EUR
View
B+
Retailer 11
-
€2,279 EUR
$2,556 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRHLLOJNGMLO · Nov 1
€2,478 EUR
$2,779 USD
View
11 more retailers have this diamond
Prices start from €1,359 EURSave up to €1,119 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
1.02ct Marquise
€1,359 EUR