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Marquise|Natural|GIA

0.90ct E SI1 Marquise Natural Diamond

GD • E/SI1 • GIA 6243093257

Certificate GIA 6243093257

Diamond specifications and retailer prices

From $3,127 AUD
SGD 2,968 SGD
As of October 31, 2026
Save $2,710 AUD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,837 AUD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6243093257. Listed at 13 retailers as of October 31, 2026, with prices from $3,127 to $5,837, a $2,710 spread on the same certified stone. Helzberg Diamonds lists it at $5,837. 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

0.90
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.49°
Pavilion angle42.29°
OriginNatural
Grading LabGIA
CertificateGIA 6243093257
Dimensions9.05 × 4.97 × 3.35 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.05 mm4.97 mm0.90 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6243093257
Side View
Table 61.0%Crown 39.49°Girdle: THK-ETKPavilion 42.29°Culet: NoneDepth 67.4%

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: $5,837 AUD|Low: $3,338 AUD|High: $5,837 AUD|Avg: $4,145 AUD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 9$3,338 AUD
Retailer 6$3,360 AUD
Retailer 10$3,374 AUD
Retailer 3$3,396 AUD
Retailer 2$3,670 AUD
Retailer 8$3,699 AUD
Retailer 11$3,999 AUD
Retailer 4$4,182 AUD
Retailer 5$4,362 AUD
Retailer 7$5,176 AUD
Retailer 12$5,502 AUD
Helzberg Diamonds$5,837 AUD

18 data points across 12 retailers

13 retailers$3,127 AUD to $5,837 AUD

A
Cheapest Retailer
-
$3,127 AUD
SGD 2,968 SGD
B+
Retailer 2
-
$3,338 AUD
$2,345 USD
View
B+
Retailer 3
-
$3,360 AUD
$2,360 USD
View
B+
Retailer 4
-
$3,374 AUD
$2,370 USD
View
B+
Retailer 5
-
$3,396 AUD
$2,386 USD
View
B+
Retailer 6
-
$3,670 AUD
£2,030 GBP
View
B+
Retailer 7
-
$3,699 AUD
SGD 3,511 SGD
View
B
Retailer 8
-
$3,999 AUD
$2,809 USD
View
B
Retailer 9
-
$4,182 AUD
$2,938 USD
View
B
Retailer 10
-
$4,362 AUD
€2,918 EUR
View
B
Retailer 11
-
$5,176 AUD
$3,636 USD
View
B
Retailer 12
-
$5,502 AUD
$3,865 USD
View
Most Expensive
B
Helzberg Diamonds
XZRMIKJGPJILN · Oct 31
$5,837 AUD
$4,100 USD
View
12 more retailers have this diamond
Prices start from $3,127 AUDSave up to $2,710 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
0.90ct Marquise
$3,127 AUD