Marquise|Natural|GIA

4.23ct D FL Marquise Natural Diamond

EX • D/FL • GIA 6552339534

Certificate GIA 6552339534

Diamond specifications and retailer prices

From $161,855 AUD
€108,280 EUR
As of November 1, 2026
Save $80,655 AUD (33%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $311,939 AUD at Helzberg Diamonds · As of October 24, 2026
View at Helzberg Diamonds

About this 4.23ct natural marquise diamond

This 4.23ct natural marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552339534. Listed at 16 retailers as of October 31, 2026, with a 50% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

4.23
Carat
D
Colour
FL
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.76°
Pavilion angle40.81°
OriginNatural
Grading LabGIA
CertificateGIA 6552339534
Dimensions16.51 × 8.42 × 5.20 mm
L/W Ratio1.96
Culet sizeNone
Top View
16.51 mm8.42 mm4.23 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552339534
Side View
Table 60.0%Crown 37.76°Girdle: MED-THKPavilion 40.81°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $311,939 AUD|Low: $161,855 AUD|High: $311,939 AUD|Avg: $223,068 AUD|+7.8%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 11$161,855 AUD
Retailer 7$187,669 AUD
Retailer 13$189,672 AUD
Retailer 5$193,587 AUD
Retailer 12$193,632 AUD
Retailer 9$200,957 AUD
Retailer 15$201,943 AUD
Retailer 2$212,439 AUD
Retailer 8$212,573 AUD
Retailer 16$213,914 AUD
Retailer 17$217,505 AUD
Retailer 4$226,483 AUD
Retailer 14$229,171 AUD
Retailer 10$242,510 AUD
Retailer 3$267,462 AUD
Retailer 6$280,620 AUD
Helzberg Diamonds$311,939 AUD

24 data points across 17 retailers

16 retailers$161,855 AUD to $242,510 AUD

A
Cheapest Retailer
-
$161,855 AUD
€108,280 EUR
Retailer 2
-
$187,669 AUD
£103,801 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
$189,672 AUD
SGD 180,046 SGD
View
Retailer 4
-
$193,587 AUD
$135,984 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$193,632 AUD
$136,016 USD
View
Retailer 6
-
$200,957 AUD
$141,161 USD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$201,943 AUD
$141,854 USD
View
A
Retailer 8
-
$212,439 AUD
View
Retailer 9
-
$212,573 AUD
$149,321 USD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$213,914 AUD
SGD 203,058 SGD
View
A
Retailer 11
-
$217,505 AUD
$152,785 USD
View
Retailer 12
-
$226,483 AUD
€151,516 EUR
View
Price last confirmed 9 days ago
A
Retailer 13
-
$229,171 AUD
£126,756 GBP
View
B+
Retailer 14
-
$242,510 AUD
$170,350 USD
View
Retailer 15
-
$267,462 AUD
$187,877 USD
View
Price last confirmed 9 days ago
Most Expensive
Helzberg Diamonds
XZRMLLIJJPLJK · Oct 24
$311,939 AUD
$219,120 USD
View
Price last confirmed 8 days ago
15 more retailers have this diamond
Prices start from $161,855 AUDSave up to $80,655 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
4.23ct Marquise
$161,855 AUD