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Marquise|Natural|GIA

1.00ct E SI2 Marquise Natural Diamond

GD • E/SI2 • GIA 6542872409

Certificate GIA 6542872409

Diamond specifications and retailer prices

From $3,390 AUD
$2,381 USD
As of October 31, 2026
Save $4,412 AUD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,801 AUD at MOH London · As of October 25, 2026
View at MOH London

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6542872409. Listed at 22 retailers as of October 25, 2026, with prices from $3,390 to $7,801, a $4,412 spread on the same certified stone. MOH London lists it at $7,801. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.23°
Pavilion angle36.4°
OriginNatural
Grading LabGIA
CertificateGIA 6542872409
Dimensions10.03 × 5.30 × 2.96 mm
L/W Ratio1.89
Top View
10.03 mm5.30 mm1.00 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542872409
Side View
Table 63.0%Crown 36.23°Girdle: THN-VTKPavilion 36.4°Culet: NoneDepth 55.9%

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: Oct 31
Current: $7,801 AUD|Low: $3,055 AUD|High: $7,885 AUD|Avg: $4,672 AUD
MOH London
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
October 31, 2026
Retailer 2$3,390 AUD
Retailer 17$3,476 AUD
Retailer 6$3,540 AUD
Retailer 18$3,586 AUD
Retailer 4$3,696 AUD
Retailer 5$3,705 AUD
Retailer 7$4,003 AUD
Retailer 8$4,003 AUD
Retailer 19$4,050 AUD
Retailer 3$4,383 AUD
Retailer 10$4,389 AUD
Retailer 9$4,570 AUD
Retailer 16$4,570 AUD
Retailer 13$4,618 AUD
Retailer 14$4,620 AUD
Retailer 20$4,712 AUD
Retailer 11$5,124 AUD
Retailer 12$6,721 AUD
Retailer 15$7,700 AUD
MOH London$7,801 AUD

42 data points across 20 retailers

22 retailers$3,390 AUD to $7,801 AUD

A
Cheapest Retailer
-
$3,390 AUD
$2,381 USD
A
Retailer 2
-
$3,476 AUD
$2,442 USD
View
A
Retailer 3
-
$3,479 AUD
$2,444 USD
View
A
Retailer 4
-
$3,540 AUD
$2,487 USD
View
A
Retailer 5
-
$3,586 AUD
$2,519 USD
View
A
Retailer 6
-
$3,696 AUD
$2,596 USD
View
Final sale: no returns
A
Retailer 7
-
$3,705 AUD
View
B+
Retailer 8
-
$4,003 AUD
$2,812 USD
View
B+
Retailer 9
-
$4,003 AUD
$2,812 USD
View
B+
Retailer 10
-
$4,050 AUD
$2,845 USD
View
B+
Retailer 11
-
$4,383 AUD
£2,424 GBP
View
B+
Retailer 12
-
$4,389 AUD
$3,083 USD
View
Retailer 13
-
$4,419 AUD
$3,104 USD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$4,570 AUD
$3,210 USD
View
B+
Retailer 15
-
$4,570 AUD
$3,210 USD
View
B+
Retailer 16
-
$4,618 AUD
£2,554 GBP
View
B+
Retailer 17
-
$4,620 AUD
$3,245 USD
View
B+
Retailer 18
-
$4,712 AUD
$3,310 USD
View
B+
Retailer 19
-
$5,124 AUD
€3,428 EUR
View
B
Retailer 20
-
$6,721 AUD
$4,721 USD
View
B
Retailer 21
-
$7,700 AUD
$5,409 USD
View
Most Expensive
B
MOH London
86E2AD5B1 · Oct 25
$7,801 AUD
£4,315 GBP
View
21 more retailers have this diamond
Prices start from $3,390 AUDSave up to $4,412 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
$3,390 AUD