Marquise|Natural|GIA

0.80ct K SI1 Marquise Natural Diamond

K/SI1 • GIA 6551672114

Certificate GIA 6551672114

Diamond specifications and retailer prices

From $751 USD
As of November 5, 2026
Save $659 USD (47%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,362 USD at NZ Jewellers · As of October 11, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included) and certified by GIA 6551672114. Listed at 6 retailers as of November 2, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6551672114
Dimensions8.82 × 4.65 × 3.14 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
8.82 mm4.65 mm0.80 ctK / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6551672114
Side View
Table 63.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 67.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $751 USD|Low: $687 USD|High: $1,489 USD|Avg: $1,110 USD|-6.5%
Retailer 1
Retailer 2
Retailer 3
November 5, 2026
Retailer 1$751 USD
Retailer 3$1,155 USD
Retailer 2$1,410 USD

17 data points across 3 retailers

6 retailers$751 USD to $1,410 USD

B+
Cheapest Retailer
-
$751 USD
Retailer 2
-
$753 USD
View
Price last confirmed 27 days ago
Retailer 3
-
$818 USD
View
Price last confirmed 36 days ago
B+
Retailer 4
-
$1,155 USD
View
B
Retailer 5
-
$1,410 USD
View
Most Expensive
NZ Jewellers
7b50f682-9b83-43cb-a62e-bd6b99ab6eb7 · Oct 11
$2,362 USD
View
Price last confirmed 25 days ago
5 more retailers have this diamond
Prices start from $751 USDSave up to $659 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
$751 USD