Round|Natural|GIA

0.65ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1559064758

Certificate GIA 1559064758

Diamond specifications and retailer prices

From $772 USD
As of October 31, 2026
Save $483 USD (38%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,255 USD at Frank Darling · As of October 31, 2026
View at Frank Darling

About this 0.65ct natural round diamond

This 0.65ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559064758. Listed at 15 retailers as of October 31, 2026, with prices from $772 to $1,255, a $483 spread on the same certified stone. Frank Darling lists it at $1,255. 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

0.65
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1559064758
Dimensions5.50 × 5.53 × 3.46 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.50 mm5.53 mm0.65 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559064758
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,255 USD|Low: $772 USD|High: $1,276 USD|Avg: $981 USD|-1.3%
Frank Darling
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
November 1, 2026
Retailer 11$772 USD
Retailer 3$790 USD
Retailer 12$809 USD
Retailer 6$841 USD
Retailer 5$858 USD
Retailer 10$868 USD
Retailer 8$895 USD
Retailer 2$968 USD
Retailer 13$970 USD
Retailer 9$1,099 USD
Retailer 7$1,125 USD
Retailer 14$1,177 USD
Retailer 4$1,251 USD
Frank Darling$1,255 USD

37 data points across 14 retailers

15 retailers$772 USD to $1,255 USD

A
Cheapest Retailer
-
$772 USD
A
Retailer 2
-
$790 USD
View
A
Retailer 3
-
$809 USD
SGD 1,093 SGD
View
A
Retailer 4
-
$841 USD
SGD 1,136 SGD
View
A
Retailer 5
-
$858 USD
View
A
Retailer 6
-
$868 USD
View
A
Retailer 7
-
$895 USD
£705 GBP
View
B+
Retailer 8
-
$968 USD
View
B+
Retailer 9
-
$970 USD
View
B+
Retailer 10
-
$1,002 USD
View
B+
Retailer 11
-
$1,099 USD
£865 GBP
View
B+
Retailer 12
-
$1,125 USD
€1,071 EUR
View
B+
Retailer 13
-
$1,177 USD
View
B
Retailer 14
-
$1,251 USD
View
Most Expensive
B
Frank Darling
2622538HK · Oct 31
$1,255 USD
View
14 more retailers have this diamond
Prices start from $772 USDSave up to $483 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
0.65ct Round
$772 USD