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Marquise|Natural|GIA

1.00ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 2556141137

Certificate GIA 2556141137

Diamond specifications and retailer prices

From $3,506 AUD
As of November 6, 2026
Save $4,435 AUD (56%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,941 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556141137. Listed at 6 retailers as of November 5, 2026, with prices from $3,506 to $7,941, a $4,435 spread on the same certified stone. NZ Jewellers lists it at $7,941. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2556141137
Dimensions9.66 × 5.10 × 3.25 mm
L/W Ratio1.89
Top View
9.66 mm5.10 mm1.00 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2556141137
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.7%

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 6
Current: $7,941 AUD|Low: $3,123 AUD|High: $8,872 AUD|Avg: $5,347 AUD|+3.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$3,506 AUD
Retailer 4$3,769 AUD
Retailer 6$4,398 AUD
Retailer 2$4,717 AUD
Retailer 3$6,637 AUD
NZ Jewellers$7,941 AUD

30 data points across 6 retailers

6 retailers$3,506 AUD to $7,941 AUD

A
Cheapest Retailer
-
$3,506 AUD
Final sale: no returns
A
Retailer 2
-
$3,769 AUD
View
B+
Retailer 3
-
$4,398 AUD
View
B+
Retailer 4
-
$4,717 AUD
View
B
Retailer 5
-
$6,637 AUD
View
Most Expensive
B
NZ Jewellers
9c0abb12-1f0c-4692-a5d4-9ca803abfd6c · Nov 5
$7,941 AUD
$5,456 USD
View
5 more retailers have this diamond
Prices start from $3,506 AUDSave up to $4,435 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
1.00ct Marquise
$3,506 AUD