Marquise|Natural|GIA

4.23ct D FL Marquise Natural Diamond

EX • D/FL • GIA 6552339534

Certificate GIA 6552339534

Diamond specifications and retailer prices

From £84,853 GBP
€108,280 EUR
As of November 1, 2026
Save £42,284 GBP (33%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £163,536 GBP 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: £163,536 GBP|Low: £84,853 GBP|High: £163,536 GBP|Avg: £116,945 GBP|+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£84,853 GBP
Retailer 7£98,386 GBP
Retailer 13£99,437 GBP
Retailer 5£101,489 GBP
Retailer 12£101,513 GBP
Retailer 9£105,353 GBP
Retailer 15£105,870 GBP
Retailer 2£111,372 GBP
Retailer 8£111,443 GBP
Retailer 16£112,146 GBP
Retailer 17£114,028 GBP
Retailer 4£118,735 GBP
Retailer 14£120,144 GBP
Retailer 10£127,137 GBP
Retailer 3£140,218 GBP
Retailer 6£147,117 GBP
Helzberg Diamonds£163,536 GBP

24 data points across 17 retailers

16 retailers£84,853 GBP to £127,137 GBP

A
Cheapest Retailer
-
£84,853 GBP
€108,280 EUR
Retailer 2
-
£98,386 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
£99,437 GBP
SGD 180,046 SGD
View
Retailer 4
-
£101,489 GBP
$135,984 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
£101,513 GBP
$136,016 USD
View
Retailer 6
-
£105,353 GBP
$141,161 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
£105,870 GBP
$141,854 USD
View
A
Retailer 8
-
£111,372 GBP
A$229,579 AUD
View
Retailer 9
-
£111,443 GBP
$149,321 USD
View
Price last confirmed 10 days ago
A
Retailer 10
-
£112,146 GBP
SGD 203,058 SGD
View
A
Retailer 11
-
£114,028 GBP
$152,785 USD
View
Retailer 12
-
£118,735 GBP
€151,516 EUR
View
Price last confirmed 9 days ago
A
Retailer 13
-
£120,144 GBP
View
B+
Retailer 14
-
£127,137 GBP
$170,350 USD
View
Retailer 15
-
£140,218 GBP
$187,877 USD
View
Price last confirmed 9 days ago
Most Expensive
Helzberg Diamonds
XZRMLLIJJPLJK · Oct 24
£163,536 GBP
$219,120 USD
View
Price last confirmed 8 days ago
15 more retailers have this diamond
Prices start from £84,853 GBPSave up to £42,284 GBP

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
£84,853 GBP