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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 $1,219 USD
As of October 30, 2026
Save $874 USD (42%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,093 USD 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 $1,219 to $2,093, a $874 spread on the same certified stone. Cape Diamonds lists it at $2,093. 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
Color
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 30
Current: $2,093 USD|Low: $1,219 USD|High: $2,102 USD|Avg: $1,604 USD|+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 30, 2026
Retailer 12$1,219 USD
Retailer 13$1,220 USD
Retailer 9$1,426 USD
Retailer 3$1,520 USD
Retailer 4$1,520 USD
Retailer 2$1,557 USD
Retailer 5$1,570 USD
Retailer 10$1,643 USD
Retailer 7$1,715 USD
Retailer 6$1,780 USD
Retailer 8$1,924 USD
Retailer 11$1,948 USD
Cape Diamonds$2,093 USD

42 data points across 13 retailers

14 retailers$1,219 USD to $2,093 USD

A
Cheapest Retailer
-
$1,219 USD
A
Retailer 2
-
$1,220 USD
View
B+
Retailer 3
-
$1,426 USD
View
B+
Retailer 4
-
$1,520 USD
View
B+
Retailer 5
-
$1,520 USD
View
B+
Retailer 6
-
$1,557 USD
£1,226 GBP
View
B+
Retailer 7
-
$1,570 USD
View
B+
Retailer 8
-
$1,643 USD
A$2,528 AUD
View
B
Retailer 9
-
$1,715 USD
£1,350 GBP
View
B
Retailer 10
-
$1,759 USD
View
B
Retailer 11
-
$1,780 USD
€1,695 EUR
View
B
Retailer 12
-
$1,924 USD
View
B
Retailer 13
-
$1,948 USD
View
Most Expensive
B
Cape Diamonds
cert_6541677990 · Oct 26
$2,093 USD
ZAR 33,805 ZAR
View
13 more retailers have this diamond
Prices start from $1,219 USDSave up to $874 USD

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
$1,219 USD