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Round|Natural|GIA

0.77ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6541677990

Certificate GIA 6541677990

Diamond specifications and retailer prices

From €1,095 EUR
$1,219 USD
As of October 28, 2026
Save €785 EUR (42%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,880 EUR at Cape Diamonds · As of October 26, 2026
View at Cape 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 6541677990. Listed at 14 retailers as of October 26, 2026, with prices from €1,095 to €1,880, a €785 spread on the same certified stone. Cape Diamonds lists it at €1,880. 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 angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6541677990
Dimensions5.85 × 5.81 × 3.65 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Cloud
Top View
5.85 mm5.81 mm0.77 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541677990
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: €1,880 EUR|Low: €1,095 EUR|High: €1,888 EUR|Avg: €1,450 EUR|+2.4%
Cape 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
October 28, 2026
Retailer 12€1,095 EUR
Retailer 13€1,096 EUR
Retailer 9€1,281 EUR
Retailer 3€1,365 EUR
Retailer 4€1,365 EUR
Retailer 2€1,390 EUR
Retailer 5€1,410 EUR
Retailer 10€1,476 EUR
Retailer 7€1,540 EUR
Retailer 6€1,585 EUR
Retailer 8€1,728 EUR
Retailer 11€1,750 EUR
Cape Diamonds€1,880 EUR

41 data points across 13 retailers

14 retailers€1,095 EUR to €1,880 EUR

A
Cheapest Retailer
-
€1,095 EUR
$1,219 USD
A
Retailer 2
-
€1,096 EUR
$1,220 USD
View
B+
Retailer 3
-
€1,281 EUR
$1,426 USD
View
B+
Retailer 4
-
€1,365 EUR
$1,520 USD
View
B+
Retailer 5
-
€1,365 EUR
$1,520 USD
View
B+
Retailer 6
-
€1,390 EUR
£1,219 GBP
View
B+
Retailer 7
-
€1,410 EUR
$1,570 USD
View
B+
Retailer 8
-
€1,476 EUR
A$2,528 AUD
View
B
Retailer 9
-
€1,540 EUR
£1,350 GBP
View
B
Retailer 10
-
€1,580 EUR
$1,759 USD
View
B+
Retailer 11
-
€1,585 EUR
View
B
Retailer 12
-
€1,728 EUR
$1,924 USD
View
B
Retailer 13
-
€1,750 EUR
$1,948 USD
View
Most Expensive
B
Cape Diamonds
cert_6541677990 · Oct 26
€1,880 EUR
ZAR 33,805 ZAR
View
13 more retailers have this diamond
Prices start from €1,095 EURSave up to €785 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
€1,095 EUR