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Round|Natural|GIA

0.77ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6511380100

Certificate GIA 6511380100

Diamond specifications and retailer prices

From $1,201 AUD
As of November 4, 2026
Save $1,429 AUD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,690 AUD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6511380100. Listed at 14 retailers as of November 4, 2026, with a 119% 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

0.77
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6511380100
Dimensions5.85 × 5.82 × 3.64 mm
L/W Ratio1.01
Top View
5.85 mm5.82 mm0.77 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6511380100
Side View
Table 58.0%CrownGirdle: MED-SLIPavilionCulet: NoneDepth 62.4%

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: Nov 4
Current: $1,660 AUD|Low: $1,201 AUD|High: $2,804 AUD|Avg: $1,704 AUD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$1,201 AUD
Retailer 9$1,214 AUD
Retailer 6$1,279 AUD
Retailer 8$1,317 AUD
Retailer 5$1,438 AUD
Retailer 4$1,446 AUD
Retailer 1$1,660 AUD
Retailer 2$2,003 AUD
Retailer 3$2,630 AUD

39 data points across 9 retailers

14 retailers$1,201 AUD to $2,630 AUD

A
Cheapest Retailer
-
$1,201 AUD
Final sale: no returns
A
Retailer 2
-
$1,214 AUD
View
A
Retailer 3
-
$1,279 AUD
View
A
Retailer 4
-
$1,317 AUD
View
Retailer 5
-
$1,370 AUD
View
Price last confirmed 29 days ago
Retailer 6
-
$1,370 AUD
View
Price last confirmed 29 days ago
Retailer 7
-
$1,423 AUD
View
Price last confirmed 38 days ago
A
Retailer 8
-
$1,438 AUD
View
A
Retailer 9
-
$1,446 AUD
View
Retailer 10
-
$1,581 AUD
View
Price last confirmed 38 days ago
A
Retailer 11
-
$1,660 AUD
View
B+
Retailer 12
-
$2,003 AUD
View
B+
Retailer 13
-
$2,630 AUD
View
Most Expensive
NZ Jewellers
fb63791a-a73e-461f-9b96-e49d6304634b · Sep 26
$3,690 AUD
$2,583 USD
View
Price last confirmed 40 days ago
13 more retailers have this diamond
Prices start from $1,201 AUDSave up to $1,429 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
$1,201 AUD