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Marquise|Natural|GIA

0.80ct K SI2 Marquise Natural Diamond

VG • K/SI2 • GIA 6

Certificate GIA 6

Diamond specifications and retailer prices

From $1,374 USD
As of November 6, 2026
Save $278 USD (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,652 USD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of November 5, 2026, with prices from $1,374 to $1,652, a $278 spread on the same certified stone. Blue Nile lists it at $1,652. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.80
Carat
K
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6
Dimensions8.99 × 4.89 × 3.04 mm
L/W Ratio1.84
Top View
8.99 mm4.89 mm0.80 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 62.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $1,652 USD|Low: $1,374 USD|High: $1,652 USD|Avg: $1,435 USD
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2$1,374 USD
Retailer 3$1,388 USD
Blue Nile$1,652 USD

2 data points across 3 retailers

3 retailers$1,374 USD to $1,652 USD

B
Cheapest Retailer
-
$1,374 USD
B
Retailer 2
-
$1,388 USD
View
Most Expensive
B
Blue Nile
15376165 · Nov 5
$1,652 USD
View
2 more retailers have this diamond
Prices start from $1,374 USDSave up to $278 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.

B
0.80ct Marquise
$1,374 USD