Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6203521683

Certificate GIA 6203521683

Diamond specifications and retailer prices

From €665 EUR
HK$5,800 HKD
As of October 31, 2026
Save €959 EUR (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €2,830 EUR at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6203521683. Listed at 17 retailers as of October 31, 2026, with a 144% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.80
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6203521683
Dimensions5.87 × 5.92 × 3.69 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
5.87 mm5.92 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6203521683
Side View
Table 57.0%Crown 36°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.7%

Caratlytics Score

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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: €2,830 EUR|Low: €653 EUR|High: €2,830 EUR|Avg: €1,130 EUR
NZ Jewellers
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
Retailer 16
November 1, 2026
Retailer 11€665 EUR
Retailer 10€665 EUR
Retailer 5€727 EUR
Retailer 14€817 EUR
Retailer 6€902 EUR
Retailer 4€917 EUR
Retailer 3€960 EUR
Retailer 16€1,020 EUR
Retailer 9€1,033 EUR
Retailer 7€1,042 EUR
Retailer 15€1,105 EUR
Retailer 13€1,151 EUR
Retailer 8€1,180 EUR
Retailer 12€1,311 EUR
Retailer 2€1,623 EUR
NZ Jewellers€2,830 EUR

32 data points across 16 retailers

17 retailers€665 EUR to €1,623 EUR

A
Cheapest Retailer
-
€665 EUR
HK$5,800 HKD
A
Retailer 2
-
€665 EUR
₹70,762 INR
View
A
Retailer 3
-
€727 EUR
$812 USD
View
A
Retailer 4
-
€817 EUR
$913 USD
View
Final sale: no returns
Retailer 5
-
€902 EUR
$1,008 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
€917 EUR
SGD 1,385 SGD
View
Retailer 7
-
€937 EUR
$1,047 USD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
€960 EUR
$1,073 USD
View
B+
Retailer 9
-
€1,020 EUR
$1,140 USD
View
B+
Retailer 10
-
€1,033 EUR
£909 GBP
View
Retailer 11
-
€1,042 EUR
$1,164 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
€1,105 EUR
$1,235 USD
View
B+
Retailer 13
-
€1,151 EUR
View
Retailer 14
-
€1,180 EUR
A$2,029 AUD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
€1,311 EUR
ZAR 23,663 ZAR
View
B
Retailer 16
-
€1,623 EUR
£1,428 GBP
View
Most Expensive
NZ Jewellers
ce6df165-cb18-4743-893b-a0eae58deb8d · Oct 20
€2,830 EUR
$3,162 USD
View
Price last confirmed 12 days ago
16 more retailers have this diamond
Prices start from €665 EURSave up to €959 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
0.80ct Round
€665 EUR