Round|Natural|GIA

0.80ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6545006193

Certificate GIA 6545006193

Diamond specifications and retailer prices

From $617 USD
As of November 5, 2026
Save $1,932 USD (76%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,549 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545006193. Listed at 20 retailers as of November 5, 2026, with prices from $617 to $2,549, a $1,932 spread on the same certified stone. NZ Jewellers lists it at $2,549. 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

0.80
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6545006193
Dimensions5.92 × 5.87 × 3.72 mm
L/W Ratio1.01
Top View
5.92 mm5.87 mm0.80 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545006193
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.1%

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: Nov 5
Current: $2,549 USD|Low: $617 USD|High: $2,607 USD|Avg: $1,027 USD|-2.2%
NZ Jewellers
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 17$617 USD
Retailer 12$627 USD
Retailer 7$813 USD
Retailer 9$824 USD
Retailer 11$833 USD
Retailer 20$844 USD
Retailer 8$847 USD
Retailer 13$868 USD
Retailer 19$904 USD
Retailer 10$938 USD
Retailer 3$945 USD
Retailer 6$958 USD
Retailer 14$963 USD
Retailer 16$977 USD
Retailer 4$980 USD
Retailer 2$1,019 USD
Retailer 15$1,083 USD
Retailer 18$1,202 USD
Retailer 5$1,488 USD
NZ Jewellers$2,549 USD

15 data points across 20 retailers

20 retailers$617 USD to $2,549 USD

A
Cheapest Retailer
-
$617 USD
A
Retailer 2
-
$627 USD
View
A
Retailer 3
-
$813 USD
View
A
Retailer 4
-
$824 USD
View
Retailer 5
-
$833 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$844 USD
View
A
Retailer 7
-
$847 USD
View
A
Retailer 8
-
$868 USD
View
B+
Retailer 9
-
$904 USD
View
A
Retailer 10
-
$938 USD
View
A
Retailer 11
-
$945 USD
View
A
Retailer 12
-
$958 USD
View
A
Retailer 13
-
$963 USD
View
A
Retailer 14
-
$977 USD
View
A
Retailer 15
-
$980 USD
View
A
Retailer 16
-
$1,019 USD
View
A
Retailer 17
-
$1,083 USD
View
B+
Retailer 18
-
$1,202 USD
View
B+
Retailer 19
-
$1,488 USD
View
Most Expensive
B
NZ Jewellers
ef739d07-087a-4231-97c0-db4d0ff768af · Nov 5
$2,549 USD
View
19 more retailers have this diamond
Prices start from $617 USDSave up to $1,932 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
0.80ct Round
$617 USD