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Oval|Natural|GIA

1.00ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 1558951120

Certificate GIA 1558951120

Diamond specifications and retailer prices

From €1,967 EUR
SGD 2,970 SGD
As of October 29, 2026
Save €1,704 EUR (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €3,672 EUR at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558951120. Listed at 14 retailers as of October 29, 2026, with prices from €1,967 to €3,672, a €1,704 spread on the same certified stone. Helzberg Diamonds lists it at €3,672. 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

1.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.81°
Pavilion angle40.7°
OriginNatural
Grading LabGIA
CertificateGIA 1558951120
Dimensions7.89 × 5.68 × 3.54 mm
L/W Ratio1.39
Culet sizeNone
Top View
7.89 mm5.68 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558951120
Side View
Table 61.0%Crown 39.81°Girdle: THN-THKPavilion 40.7°Culet: NoneDepth 62.3%

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: Oct 29
Current: €3,672 EUR|Low: €1,967 EUR|High: €3,903 EUR|Avg: €2,657 EUR|-5.9%
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
October 30, 2026
Retailer 12€1,967 EUR
Retailer 10€2,100 EUR
Retailer 11€2,123 EUR
Retailer 13€2,137 EUR
Retailer 9€2,184 EUR
Retailer 7€2,303 EUR
Retailer 5€2,326 EUR
Retailer 14€2,516 EUR
Retailer 4€2,631 EUR
Retailer 2€2,680 EUR
Retailer 8€2,751 EUR
Retailer 6€3,256 EUR
Retailer 3€3,519 EUR
Helzberg Diamonds€3,672 EUR

32 data points across 14 retailers

14 retailers€1,967 EUR to €3,672 EUR

A
Cheapest Retailer
-
€1,967 EUR
SGD 2,970 SGD
A
Retailer 2
-
€2,100 EUR
$2,346 USD
View
A
Retailer 3
-
€2,123 EUR
$2,372 USD
View
A
Retailer 4
-
€2,137 EUR
$2,387 USD
View
A
Retailer 5
-
€2,184 EUR
$2,440 USD
View
A
Retailer 6
-
€2,303 EUR
£2,026 GBP
View
A
Retailer 7
-
€2,326 EUR
SGD 3,511 SGD
View
A
Retailer 8
-
€2,516 EUR
$2,811 USD
View
A
Retailer 9
-
€2,631 EUR
$2,939 USD
View
B+
Retailer 10
-
€2,680 EUR
$2,994 USD
View
B+
Retailer 11
-
€2,751 EUR
View
B+
Retailer 12
-
€3,256 EUR
$3,638 USD
View
B+
Retailer 13
-
€3,519 EUR
$3,932 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRHLLOPLHHIG · Oct 30
€3,672 EUR
$4,102 USD
View
13 more retailers have this diamond
Prices start from €1,967 EURSave up to €1,704 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 Oval
€1,967 EUR