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Marquise|Natural|GIA

0.90ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 5563688349

Certificate GIA 5563688349

Diamond specifications and retailer prices

From $3,322 AUD
SGD 3,146 SGD
As of October 31, 2026
Save $2,878 AUD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,200 AUD at Helzberg Diamonds · As of November 2, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5563688349. Listed at 14 retailers as of October 31, 2026, with prices from $3,322 to $6,200, a $2,878 spread on the same certified stone. Helzberg Diamonds lists it at $6,200. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.96°
Pavilion angle40.11°
OriginNatural
Grading LabGIA
CertificateGIA 5563688349
Dimensions10.30 × 5.20 × 2.98 mm
L/W Ratio1.98
Culet sizeNone
Top View
10.30 mm5.20 mm0.90 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563688349
Side View
Table 63.0%Crown 34.96°Girdle: MED-THKPavilion 40.11°Culet: NoneDepth 57.3%

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: Oct 31
Current: $6,200 AUD|Low: $3,546 AUD|High: $6,200 AUD|Avg: $4,456 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
Retailer 13
November 2, 2026
Retailer 11$3,546 AUD
Retailer 10$3,560 AUD
Retailer 3$3,583 AUD
Retailer 12$3,608 AUD
Retailer 6$3,864 AUD
Retailer 5$3,928 AUD
Retailer 8$4,235 AUD
Retailer 4$4,404 AUD
Retailer 7$4,523 AUD
Retailer 2$4,648 AUD
Retailer 13$5,499 AUD
Retailer 9$5,817 AUD
Helzberg Diamonds$6,200 AUD

13 data points across 13 retailers

14 retailers$3,322 AUD to $6,200 AUD

B+
Cheapest Retailer
-
$3,322 AUD
SGD 3,146 SGD
B+
Retailer 2
-
$3,546 AUD
$2,485 USD
View
B+
Retailer 3
-
$3,560 AUD
$2,495 USD
View
B+
Retailer 4
-
$3,583 AUD
$2,511 USD
View
B+
Retailer 5
-
$3,608 AUD
$2,528 USD
View
B
Retailer 6
-
$3,864 AUD
£2,132 GBP
View
B
Retailer 7
-
$3,928 AUD
SGD 3,720 SGD
View
B
Retailer 8
-
$4,235 AUD
$2,968 USD
View
B
Retailer 9
-
$4,404 AUD
$3,087 USD
View
B
Retailer 10
-
$4,523 AUD
$3,170 USD
View
B
Retailer 11
-
$4,648 AUD
€3,102 EUR
View
B
Retailer 12
-
$5,499 AUD
$3,854 USD
View
B
Retailer 13
-
$5,817 AUD
$4,077 USD
View
Most Expensive
B
Helzberg Diamonds
XZRLLMJMOOJKP · Nov 2
$6,200 AUD
$4,345 USD
View
13 more retailers have this diamond
Prices start from $3,322 AUDSave up to $2,878 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+
0.90ct Marquise
$3,322 AUD