CaratHunter
Plans
Round|Natural|GIA

0.77ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6541677990

Certificate GIA 6541677990

Diamond specifications and retailer prices

From $1,733 AUD
$1,219 USD
As of October 28, 2026
Save $1,242 AUD (42%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,975 AUD 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 $1,733 to $2,975, a $1,242 spread on the same certified stone. Cape Diamonds lists it at $2,975. 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: $2,975 AUD|Low: $1,733 AUD|High: $2,988 AUD|Avg: $2,296 AUD|+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$1,733 AUD
Retailer 13$1,735 AUD
Retailer 9$2,028 AUD
Retailer 3$2,161 AUD
Retailer 4$2,161 AUD
Retailer 2$2,200 AUD
Retailer 5$2,232 AUD
Retailer 10$2,336 AUD
Retailer 7$2,438 AUD
Retailer 6$2,510 AUD
Retailer 8$2,736 AUD
Retailer 11$2,770 AUD
Cape Diamonds$2,975 AUD

41 data points across 13 retailers

14 retailers$1,733 AUD to $2,975 AUD

A
Cheapest Retailer
-
$1,733 AUD
$1,219 USD
A
Retailer 2
-
$1,735 AUD
$1,220 USD
View
B+
Retailer 3
-
$2,028 AUD
$1,426 USD
View
B+
Retailer 4
-
$2,161 AUD
$1,520 USD
View
B+
Retailer 5
-
$2,161 AUD
$1,520 USD
View
B+
Retailer 6
-
$2,200 AUD
£1,219 GBP
View
B+
Retailer 7
-
$2,232 AUD
$1,570 USD
View
B+
Retailer 8
-
$2,336 AUD
View
B
Retailer 9
-
$2,438 AUD
£1,350 GBP
View
B
Retailer 10
-
$2,501 AUD
$1,759 USD
View
B+
Retailer 11
-
$2,510 AUD
€1,681 EUR
View
B
Retailer 12
-
$2,736 AUD
$1,924 USD
View
B
Retailer 13
-
$2,770 AUD
$1,948 USD
View
Most Expensive
B
Cape Diamonds
cert_6541677990 · Oct 26
$2,975 AUD
ZAR 33,805 ZAR
View
13 more retailers have this diamond
Prices start from $1,733 AUDSave up to $1,242 AUD

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
$1,733 AUD