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Marquise|Natural|GIA

1.00ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2546186288

Certificate GIA 2546186288

Diamond specifications and retailer prices

From $4,417 AUD
As of November 6, 2026
Save $2,004 AUD (31%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,104 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546186288. Listed at 21 retailers as of October 31, 2026, with a 45% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546186288
Dimensions11.81 × 5.02 × 2.83 mm
L/W Ratio2.35
Top View
11.81 mm5.02 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546186288
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 56.5%

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: Nov 6
Current: $6,095 AUD|Low: $3,916 AUD|High: $8,843 AUD|Avg: $5,687 AUD|+8.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$3,941 AUD
Retailer 7$4,417 AUD
Retailer 6$4,627 AUD
Retailer 4$4,746 AUD
Retailer 5$5,319 AUD
Retailer 3$5,426 AUD
Retailer 9$5,461 AUD
Retailer 2$5,596 AUD
Retailer 1$6,095 AUD
Retailer 8$6,421 AUD
Retailer 11$8,785 AUD

40 data points across 11 retailers

21 retailers$4,417 AUD to $6,421 AUD

Retailer 1
-
$3,941 AUD
Price last confirmed 8 days ago
B+
Retailer 2
-
$4,417 AUD
View
Final sale: no returns
Retailer 3
-
$4,461 AUD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$4,627 AUD
View
Retailer 5
-
$4,638 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$4,746 AUD
View
B+
Retailer 7
-
$4,895 AUD
View
Retailer 8
-
$5,225 AUD
View
Price last confirmed 9 days ago
Retailer 9
-
$5,225 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$5,319 AUD
View
Retailer 11
-
$5,426 AUD
View
Price last confirmed 9 days ago
Retailer 12
-
$5,436 AUD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$5,461 AUD
View
Retailer 14
-
$5,596 AUD
View
Price last confirmed 30 days ago
B
Retailer 15
-
$5,695 AUD
View
B+
Retailer 16
-
$6,028 AUD
View
B
Retailer 17
-
$6,095 AUD
View
Retailer 18
-
$6,124 AUD
View
Price last confirmed 62 days ago
B
Retailer 19
-
$6,421 AUD
View
Retailer 20
-
$8,785 AUD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
3dfaf108-81e9-4213-bfcc-42746fb8c38e · Oct 30
$9,104 AUD
$6,255 USD
View
Price last confirmed 7 days ago
20 more retailers have this diamond
Prices start from $4,417 AUDSave up to $2,004 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
$4,417 AUD