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Marquise|Natural|GIA

0.80ct G SI1 Marquise Natural Diamond

GD • G/SI1 • GIA 6561525671

Certificate GIA 6561525671

Diamond specifications and retailer prices

From $2,199 AUD
$1,541 USD
As of November 1, 2026
Save $411 AUD (16%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,610 AUD at Blue Nile · As of October 31, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6561525671. Listed at 4 retailers as of October 31, 2026, with prices from $2,199 to $2,610, a $411 spread on the same certified stone. Blue Nile lists it at $2,610. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561525671
Dimensions9.72 × 4.77 × 2.94 mm
L/W Ratio2.04
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
9.72 mm4.77 mm0.80 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561525671
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.6%

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 1
Current: $2,610 AUD|Low: $2,199 AUD|High: $2,610 AUD|Avg: $2,410 AUD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3$2,199 AUD
Retailer 2$2,373 AUD
Retailer 4$2,425 AUD
Blue Nile$2,610 AUD

7 data points across 4 retailers

4 retailers$2,199 AUD to $2,610 AUD

A
Cheapest Retailer
-
$2,199 AUD
$1,541 USD
B+
Retailer 2
-
$2,373 AUD
£1,310 GBP
View
B+
Retailer 3
-
$2,425 AUD
SGD 2,297 SGD
View
Most Expensive
B+
Blue Nile
30473454 · Oct 31
$2,610 AUD
$1,829 USD
View
3 more retailers have this diamond
Prices start from $2,199 AUDSave up to $411 AUD

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 Marquise
$2,199 AUD