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0.65ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6512817691

Certificate GIA 6512817691

Diamond specifications and retailer prices

From $355 USD
As of November 4, 2026
Save $351 USD (50%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $706 USD at Yorxs · As of November 5, 2026
View at Yorxs

About this 0.65ct natural round diamond

This 0.65ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6512817691. Listed at 5 retailers as of November 4, 2026, with prices from $355 to $706, a $351 spread on the same certified stone. Yorxs lists it at $706. 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
K
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6512817691
Dimensions5.66 × 5.64 × 3.37 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
5.66 mm5.64 mm0.65 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6512817691
Side View
Table 61.0%Crown 32.5°Girdle: ThickPavilion 41.6°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $701 USD|Low: $355 USD|High: $715 USD|Avg: $558 USD|+0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 6, 2026
Retailer 3$355 USD
Retailer 2$508 USD
Retailer 4$515 USD
Retailer 1$701 USD
Yorxs$706 USD

37 data points across 5 retailers

5 retailers$355 USD to $706 USD

A
Cheapest Retailer
-
$355 USD
B+
Retailer 2
-
$508 USD
View
B+
Retailer 3
-
$515 USD
View
B+
Retailer 4
-
$701 USD
View
Most Expensive
B+
Yorxs
91578 · Nov 5
$706 USD
€672 EUR
View
4 more retailers have this diamond
Prices start from $355 USDSave up to $351 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
$355 USD