Round|Natural|GIA

0.65ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2566192907

Certificate GIA 2566192907

Diamond specifications and retailer prices

From $771 USD
As of October 31, 2026
Save $483 USD (39%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,254 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 2566192907. Listed at 15 retailers as of October 31, 2026, with prices from $771 to $1,254, a $483 spread on the same certified stone. Frank Darling lists it at $1,254. 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 2566192907
Dimensions5.52 × 5.53 × 3.46 mm
L/W Ratio1.00
Culet sizeNone
Top View
5.52 mm5.53 mm0.65 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566192907
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

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: $1,254 USD|Low: $771 USD|High: $1,273 USD|Avg: $974 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
Retailer 15
November 1, 2026
Retailer 15$771 USD
Retailer 3$790 USD
Retailer 11$807 USD
Retailer 10$835 USD
Retailer 7$839 USD
Retailer 5$857 USD
Retailer 14$866 USD
Retailer 2$934 USD
Retailer 6$968 USD
Retailer 8$968 USD
Retailer 12$1,099 USD
Retailer 9$1,130 USD
Retailer 4$1,175 USD
Retailer 13$1,248 USD
Frank Darling$1,254 USD

32 data points across 15 retailers

15 retailers$771 USD to $1,254 USD

A
Cheapest Retailer
-
$771 USD
A
Retailer 2
-
$790 USD
View
A
Retailer 3
-
$807 USD
SGD 1,091 SGD
View
Retailer 4
-
$835 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$839 USD
SGD 1,134 SGD
View
A
Retailer 6
-
$857 USD
View
A
Retailer 7
-
$866 USD
View
B+
Retailer 8
-
$934 USD
£736 GBP
View
B+
Retailer 9
-
$968 USD
View
B+
Retailer 10
-
$968 USD
View
B+
Retailer 11
-
$1,099 USD
£865 GBP
View
B+
Retailer 12
-
$1,130 USD
€1,076 EUR
View
B+
Retailer 13
-
$1,175 USD
View
B+
Retailer 14
-
$1,248 USD
View
Most Expensive
B+
Frank Darling
2687175HK · Oct 31
$1,254 USD
View
14 more retailers have this diamond
Prices start from $771 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
$771 USD