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Marquise|Natural|GIA

0.64ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 6561384821

Certificate GIA 6561384821

Diamond specifications and retailer prices

From $1,037 NZD
As of November 4, 2026
Save $228 NZD (18%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,265 NZD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.64ct natural marquise diamond

This 0.64ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6561384821. Listed at 3 retailers as of November 4, 2026, with prices from $1,037 to $1,265, a $228 spread on the same certified stone. 77 Diamonds lists it at $1,265. 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

0.64
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6561384821
Dimensions8.27 × 4.73 × 2.80 mm
L/W Ratio1.75
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
8.27 mm4.73 mm0.64 ctK / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceMedium
CertificateGIA 6561384821
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.3%

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 4
Current: $1,265 NZD|Low: $1,037 NZD|High: $1,277 NZD|Avg: $1,144 NZD|+4.1%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2$1,037 NZD
Retailer 3$1,133 NZD
77 Diamonds$1,265 NZD

39 data points across 3 retailers

3 retailers$1,037 NZD to $1,265 NZD

B+
Cheapest Retailer
-
$1,037 NZD
B+
Retailer 2
-
$1,133 NZD
View
Most Expensive
B+
77 Diamonds
MQCPGPPQSZPK · Nov 6
$1,265 NZD
£552 GBP
View
2 more retailers have this diamond
Prices start from $1,037 NZDSave up to $228 NZD

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+
0.64ct Marquise
$1,037 NZD