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Marquise|Natural|GIA

1.00ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 7548620057

Certificate GIA 7548620057

Diamond specifications and retailer prices

From $3,808 AUD
As of November 4, 2026
Save $4,465 AUD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $8,881 AUD at NZ Jewellers · As of September 29, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7548620057. Listed at 23 retailers as of November 4, 2026, with a 117% 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7548620057
Dimensions10.00 × 5.19 × 3.12 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
Additional twinning wisps clouds pinpoints and surface graining are not shown.
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural, Needle
Top View
10.00 mm5.19 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7548620057
Side View
Table 57.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 60.1%

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 4
Current: $3,906 AUD|Low: $3,717 AUD|High: $9,082 AUD|Avg: $5,128 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 6, 2026
Retailer 14$3,803 AUD
Retailer 22$3,808 AUD
Retailer 1$3,906 AUD
Retailer 11$3,927 AUD
Retailer 3$3,976 AUD
Retailer 7$4,026 AUD
Retailer 12$4,123 AUD
Retailer 4$4,148 AUD
Retailer 2$4,364 AUD
Retailer 9$4,523 AUD
Retailer 20$4,707 AUD
Retailer 8$4,884 AUD
Retailer 5$5,100 AUD
Retailer 6$5,100 AUD
Retailer 17$5,103 AUD
Retailer 10$5,271 AUD
Retailer 13$5,294 AUD
Retailer 15$5,344 AUD
Retailer 16$5,437 AUD
Retailer 18$6,055 AUD
Retailer 21$7,161 AUD
Retailer 19$8,274 AUD

33 data points across 22 retailers

23 retailers$3,808 AUD to $8,274 AUD

Retailer 1
-
$3,803 AUD
Price last confirmed 20 days ago
A
Retailer 2
-
$3,808 AUD
View
A
Retailer 3
-
$3,871 AUD
View
A
Retailer 4
-
$3,906 AUD
View
A
Retailer 5
-
$3,976 AUD
View
A
Retailer 6
-
$4,026 AUD
View
A
Retailer 7
-
$4,123 AUD
View
A
Retailer 8
-
$4,141 AUD
View
A
Retailer 9
-
$4,148 AUD
View
Final sale: no returns
A
Retailer 10
-
$4,364 AUD
View
A
Retailer 11
-
$4,523 AUD
View
B+
Retailer 12
-
$4,707 AUD
View
B+
Retailer 13
-
$4,884 AUD
View
Retailer 14
-
$5,098 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$5,100 AUD
View
B+
Retailer 16
-
$5,100 AUD
View
B+
Retailer 17
-
$5,103 AUD
View
B+
Retailer 18
-
$5,271 AUD
View
B+
Retailer 19
-
$5,437 AUD
View
B+
Retailer 20
-
$6,055 AUD
View
B
Retailer 21
-
$7,161 AUD
View
B
Retailer 22
-
$8,274 AUD
View
Most Expensive
NZ Jewellers
6d4e97eb-de4e-4ea4-be78-e29edad595c7 · Sep 29
$8,881 AUD
$6,217 USD
View
Price last confirmed 37 days ago
22 more retailers have this diamond
Prices start from $3,808 AUDSave up to $4,465 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
$3,808 AUD