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Round|Natural|GIA

0.77ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1565680191

Certificate GIA 1565680191

Diamond specifications and retailer prices

From $1,748 AUD
$1,228 USD
As of October 31, 2026
Save $1,386 AUD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,135 AUD at Helzberg Diamonds · As of October 31, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565680191. Listed at 13 retailers as of October 31, 2026, with prices from $1,748 to $3,135, a $1,386 spread on the same certified stone. Helzberg Diamonds lists it at $3,135. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1565680191
Dimensions5.82 × 5.84 × 3.65 mm
L/W Ratio1.00
Culet sizeNone
Top View
5.82 mm5.84 mm0.77 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565680191
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

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 31
Current: $3,135 AUD|Low: $1,748 AUD|High: $3,135 AUD|Avg: $2,303 AUD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 8$1,748 AUD
Retailer 6$1,780 AUD
Retailer 3$1,904 AUD
Retailer 4$1,974 AUD
Retailer 9$2,135 AUD
Retailer 2$2,194 AUD
Retailer 7$2,377 AUD
Retailer 11$2,464 AUD
Retailer 5$2,529 AUD
Retailer 10$2,817 AUD
Helzberg Diamonds$3,135 AUD

11 data points across 11 retailers

13 retailers$1,748 AUD to $3,135 AUD

A
Cheapest Retailer
-
$1,748 AUD
$1,228 USD
A
Retailer 2
-
$1,749 AUD
SGD 1,660 SGD
View
A
Retailer 3
-
$1,772 AUD
$1,245 USD
View
A
Retailer 4
-
$1,780 AUD
$1,250 USD
View
B+
Retailer 5
-
$1,904 AUD
SGD 1,807 SGD
View
B+
Retailer 6
-
$1,974 AUD
£1,092 GBP
View
B+
Retailer 7
-
$2,135 AUD
$1,500 USD
View
B+
Retailer 8
-
$2,194 AUD
$1,541 USD
View
B+
Retailer 9
-
$2,377 AUD
£1,315 GBP
View
B
Retailer 10
-
$2,464 AUD
$1,731 USD
View
B
Retailer 11
-
$2,529 AUD
€1,692 EUR
View
B
Retailer 12
-
$2,817 AUD
$1,979 USD
View
Most Expensive
B
Helzberg Diamonds
XZRHLMLMOGHPH · Oct 31
$3,135 AUD
$2,202 USD
View
12 more retailers have this diamond
Prices start from $1,748 AUDSave up to $1,386 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
$1,748 AUD