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Marquise|Natural|GIA

0.90ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 2554644256

Certificate GIA 2554644256

Diamond specifications and retailer prices

From $3,513 AUD
SGD 3,335 SGD
As of October 29, 2026
Save $3,041 AUD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,554 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2554644256. Listed at 13 retailers as of October 29, 2026, with prices from $3,513 to $6,554, a $3,041 spread on the same certified stone. Helzberg Diamonds lists it at $6,554. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.81°
Pavilion angle40.27°
OriginNatural
Grading LabGIA
CertificateGIA 2554644256
Dimensions9.20 × 4.96 × 3.24 mm
L/W Ratio1.85
Culet sizeNone
Top View
9.20 mm4.96 mm0.90 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554644256
Side View
Table 59.0%Crown 40.81°Girdle: THN-VTKPavilion 40.27°Culet: NoneDepth 65.3%

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 29
Current: $6,554 AUD|Low: $3,513 AUD|High: $6,694 AUD|Avg: $4,649 AUD|-2.1%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 9$3,513 AUD
Retailer 12$3,751 AUD
Retailer 8$3,787 AUD
Retailer 10$3,815 AUD
Retailer 6$4,106 AUD
Retailer 4$4,154 AUD
Retailer 11$4,466 AUD
Retailer 7$4,605 AUD
Retailer 3$4,619 AUD
Retailer 2$4,783 AUD
Retailer 5$5,815 AUD
Retailer 13$6,160 AUD
Helzberg Diamonds$6,554 AUD

39 data points across 13 retailers

13 retailers$3,513 AUD to $6,554 AUD

A
Cheapest Retailer
-
$3,513 AUD
SGD 3,335 SGD
B+
Retailer 2
-
$3,751 AUD
$2,635 USD
View
B+
Retailer 3
-
$3,787 AUD
$2,660 USD
View
B+
Retailer 4
-
$3,815 AUD
$2,680 USD
View
B+
Retailer 5
-
$4,106 AUD
£2,271 GBP
View
B+
Retailer 6
-
$4,154 AUD
SGD 3,943 SGD
View
B
Retailer 7
-
$4,466 AUD
$3,137 USD
View
B+
Retailer 8
-
$4,605 AUD
€3,081 EUR
View
B+
Retailer 9
-
$4,619 AUD
$3,245 USD
View
B+
Retailer 10
-
$4,783 AUD
$3,360 USD
View
B
Retailer 11
-
$5,815 AUD
$4,085 USD
View
B
Retailer 12
-
$6,160 AUD
$4,327 USD
View
Most Expensive
B
Helzberg Diamonds
XZRILLKMKKILM · Oct 31
$6,554 AUD
$4,604 USD
View
12 more retailers have this diamond
Prices start from $3,513 AUDSave up to $3,041 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
$3,513 AUD