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Marquise|Natural|GIA

1.00ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 6545801444

Certificate GIA 6545801444

Diamond specifications and retailer prices

From $5,626 AUD
$3,952 USD
As of October 30, 2026
Save $6,517 AUD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,143 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6545801444. Listed at 14 retailers as of October 30, 2026, with prices from $5,626 to $12,143, a $6,517 spread on the same certified stone. NZ Jewellers lists it at $12,143. 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

1.00
Carat
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545801444
Dimensions9.39 × 5.10 × 3.34 mm
L/W Ratio1.84
Top View
9.39 mm5.10 mm1.00 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545801444
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.5%

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: Oct 30
Current: $6,944 AUD|Low: $5,623 AUD|High: $10,509 AUD|Avg: $6,958 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 22, 2026
Retailer 7$5,626 AUD
Retailer 5$5,680 AUD
Retailer 9$5,737 AUD
Retailer 12$5,804 AUD
Retailer 11$6,121 AUD
Retailer 6$6,577 AUD
Retailer 1$6,944 AUD
Retailer 2$7,388 AUD
Retailer 4$7,388 AUD
Retailer 3$7,630 AUD
Retailer 8$8,015 AUD
Retailer 10$10,509 AUD

17 data points across 12 retailers

14 retailers$5,626 AUD to $12,143 AUD

B+
Cheapest Retailer
-
$5,626 AUD
$3,952 USD
B+
Retailer 2
-
$5,680 AUD
$3,990 USD
View
B+
Retailer 3
-
$5,737 AUD
$4,030 USD
View
B+
Retailer 4
-
$5,804 AUD
$4,077 USD
View
B+
Retailer 5
-
$5,999 AUD
View
B
Retailer 6
-
$6,121 AUD
$4,300 USD
View
B
Retailer 7
-
$6,577 AUD
$4,620 USD
View
B
Retailer 8
-
$6,577 AUD
$4,620 USD
View
B
Retailer 9
-
$6,944 AUD
$4,878 USD
View
B
Retailer 10
-
$7,388 AUD
$5,190 USD
View
B
Retailer 11
-
$7,589 AUD
$5,331 USD
View
Retailer 12
-
$8,015 AUD
$5,630 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$10,509 AUD
$7,382 USD
View
Most Expensive
C
NZ Jewellers
518e2052-55b4-4139-8697-4dd3bd789986 · Oct 30
$12,143 AUD
$8,530 USD
View
13 more retailers have this diamond
Prices start from $5,626 AUDSave up to $6,517 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.

B+
1.00ct Marquise
$5,626 AUD