Round|Lab Grown|GIA

0.80ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • GIA 1359567870

Certificate GIA 1359567870

Diamond specifications and retailer prices

From $742 USD
As of November 4, 2026
Save $562 USD (43%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,304 USD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.8ct lab-grown round diamond

This 0.8ct lab-grown 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 1359567870. Listed at 7 retailers as of November 4, 2026, with prices from $742 to $1,304, a $562 spread on the same certified stone. 77 Diamonds lists it at $1,304. 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
OriginLab Grown
Grading LabGIA
CertificateGIA 1359567870
Dimensions5.87 × 5.90 × 3.69 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.87 mm5.90 mm0.80 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1359567870
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.6%

Caratlytics Score

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

Last verified: Nov 4
Current: $1,304 USD|Low: $729 USD|High: $1,617 USD|Avg: $1,088 USD|+8.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$742 USD
Retailer 3$743 USD
Retailer 4$906 USD
Retailer 7$1,064 USD
Retailer 6$1,076 USD
Retailer 2$1,283 USD
77 Diamonds$1,304 USD
Retailer 8$1,380 USD

39 data points across 8 retailers

7 retailers$742 USD to $1,304 USD

A
Cheapest Retailer
-
$742 USD
A
Retailer 2
-
$743 USD
View
B
Retailer 3
-
$906 USD
View
Retailer 4
-
$1,064 USD
View
Price last confirmed 10 days ago
B
Retailer 5
-
$1,076 USD
View
B
Retailer 6
-
$1,283 USD
View
Most Expensive
B
77 Diamonds
RBCPTPQVVVTA · Nov 6
$1,304 USD
£1,027 GBP
View
6 more retailers have this diamond
Prices start from $742 USDSave up to $562 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
$742 USD