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0.77ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6565524370

Certificate GIA 6565524370

Diamond specifications and retailer prices

From €1,103 EUR
$1,228 USD
As of October 28, 2026
Save €875 EUR (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,978 EUR at Helzberg Diamonds · As of October 28, 2026
View at Helzberg Diamonds

About this 0.77ct natural round diamond

This 0.77ct natural round sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565524370. Listed at 15 retailers as of October 28, 2026, with prices from €1,103 to €1,978, a €875 spread on the same certified stone. Helzberg Diamonds lists it at €1,978. 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

0.77
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565524370
Dimensions5.85 × 5.89 × 3.61 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.85 mm5.89 mm0.77 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565524370
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

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 28
Current: €1,978 EUR|Low: €1,103 EUR|High: €1,978 EUR|Avg: €1,415 EUR
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 29, 2026
Retailer 13€1,103 EUR
Retailer 9€1,118 EUR
Retailer 4€1,123 EUR
Retailer 12€1,168 EUR
Retailer 5€1,201 EUR
Retailer 2€1,242 EUR
Retailer 10€1,347 EUR
Retailer 7€1,384 EUR
Retailer 14€1,500 EUR
Retailer 6€1,555 EUR
Retailer 8€1,589 EUR
Retailer 11€1,681 EUR
Retailer 3€1,777 EUR
Helzberg Diamonds€1,978 EUR

12 data points across 14 retailers

15 retailers€1,103 EUR to €1,978 EUR

A
Cheapest Retailer
-
€1,103 EUR
$1,228 USD
A
Retailer 2
-
€1,118 EUR
$1,245 USD
View
A
Retailer 3
-
€1,123 EUR
$1,250 USD
View
A
Retailer 4
-
€1,168 EUR
$1,300 USD
View
A
Retailer 5
-
€1,180 EUR
SGD 1,775 SGD
View
B+
Retailer 6
-
€1,201 EUR
SGD 1,807 SGD
View
B+
Retailer 7
-
€1,242 EUR
£1,088 GBP
View
B+
Retailer 8
-
€1,347 EUR
$1,500 USD
View
B+
Retailer 9
-
€1,384 EUR
$1,541 USD
View
B+
Retailer 10
-
€1,500 EUR
£1,315 GBP
View
B
Retailer 11
-
€1,555 EUR
$1,731 USD
View
B+
Retailer 12
-
€1,589 EUR
View
B+
Retailer 13
-
€1,681 EUR
$1,872 USD
View
B
Retailer 14
-
€1,777 EUR
$1,979 USD
View
Most Expensive
B
Helzberg Diamonds
XZRMLMLLIKJNG · Oct 28
€1,978 EUR
$2,202 USD
View
14 more retailers have this diamond
Prices start from €1,103 EURSave up to €875 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
0.77ct Round
€1,103 EUR