Round|Natural|GIA

0.77ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6565524370

Certificate GIA 6565524370

Diamond specifications and retailer prices

From $1,228 USD
As of October 31, 2026
Save $974 USD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,202 USD at Helzberg Diamonds · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565524370. Listed at 15 retailers as of October 30, 2026, with prices from $1,228 to $2,202, a $974 spread on the same certified stone. Helzberg Diamonds lists it at $2,202. 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 angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565524370
Dimensions5.85 × 5.89 × 3.61 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.85 mm5.89 mm0.77 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565524370
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

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 31
Current: $2,202 USD|Low: $1,228 USD|High: $2,202 USD|Avg: $1,575 USD
Helzberg 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
Retailer 14
October 31, 2026
Retailer 13$1,228 USD
Retailer 9$1,245 USD
Retailer 4$1,250 USD
Retailer 12$1,300 USD
Retailer 5$1,337 USD
Retailer 7$1,387 USD
Retailer 10$1,500 USD
Retailer 2$1,541 USD
Retailer 14$1,670 USD
Retailer 6$1,731 USD
Retailer 8$1,777 USD
Retailer 11$1,872 USD
Retailer 3$1,979 USD
Helzberg Diamonds$2,202 USD

14 data points across 14 retailers

15 retailers$1,228 USD to $2,202 USD

A
Cheapest Retailer
-
$1,228 USD
A
Retailer 2
-
$1,245 USD
View
A
Retailer 3
-
$1,250 USD
View
A
Retailer 4
-
$1,300 USD
View
A
Retailer 5
-
$1,314 USD
SGD 1,775 SGD
View
B+
Retailer 6
-
$1,337 USD
SGD 1,807 SGD
View
B+
Retailer 7
-
$1,387 USD
£1,092 GBP
View
B+
Retailer 8
-
$1,500 USD
View
B+
Retailer 9
-
$1,541 USD
View
B+
Retailer 10
-
$1,670 USD
£1,315 GBP
View
B
Retailer 11
-
$1,731 USD
View
B
Retailer 12
-
$1,777 USD
€1,692 EUR
View
B+
Retailer 13
-
$1,872 USD
View
B
Retailer 14
-
$1,979 USD
View
Most Expensive
B
Helzberg Diamonds
XZRMLMLLIKJNG · Oct 30
$2,202 USD
View
14 more retailers have this diamond
Prices start from $1,228 USDSave up to $974 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
$1,228 USD