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Marquise|Natural|GIA

4.00ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 6555771061

Certificate GIA 6555771061

Diamond specifications and retailer prices

From €37,568 EUR
HK$327,900 HKD
As of November 1, 2026
Save €30,177 EUR (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €67,745 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 4ct natural marquise diamond

This 4ct natural marquise sits in the three to five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555771061. Listed at 14 retailers as of November 1, 2026, with prices from €37,568 to €67,745, a €30,177 spread on the same certified stone. MOH London lists it at €67,745. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.00
Carat
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555771061
Dimensions15.58 × 8.35 × 5.21 mm
L/W Ratio1.87
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Cavity, Indented Natural
Top View
15.58 mm8.35 mm4.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555771061
Side View
Table 61.0%CrownGirdle: MED-XTKPavilionCulet: NoneDepth 62.4%

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: Nov 1
Current: €67,745 EUR|Low: €37,568 EUR|High: €72,707 EUR|Avg: €49,659 EUR|-6.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6€37,568 EUR
Retailer 2€40,163 EUR
Retailer 7€43,825 EUR
Retailer 8€43,890 EUR
Retailer 4€44,178 EUR
Retailer 3€47,500 EUR
Retailer 5€52,632 EUR
MOH London€67,745 EUR

35 data points across 8 retailers

14 retailers€37,568 EUR to €67,745 EUR

A
Cheapest Retailer
-
€37,568 EUR
HK$327,900 HKD
A
Retailer 2
-
€40,163 EUR
₹4,273,354 INR
View
B+
Retailer 3
-
€43,825 EUR
$48,961 USD
View
B+
Retailer 4
-
€43,890 EUR
$49,034 USD
View
Final sale: no returns
Retailer 5
-
€43,932 EUR
SGD 66,326 SGD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
€44,178 EUR
£38,863 GBP
View
B+
Retailer 7
-
€44,238 EUR
A$76,036 AUD
View
B+
Retailer 8
-
€47,500 EUR
£41,786 GBP
View
Retailer 9
-
€47,917 EUR
$53,533 USD
View
Price last confirmed 32 days ago
B+
Retailer 10
-
€52,632 EUR
View
Retailer 11
-
€52,892 EUR
$59,091 USD
View
Price last confirmed 31 days ago
Retailer 12
-
€55,007 EUR
$61,454 USD
View
Price last confirmed 24 days ago
Retailer 13
-
€57,123 EUR
$63,818 USD
View
Price last confirmed 23 days ago
Most Expensive
B
MOH London
B579C545B · Nov 1
€67,745 EUR
£59,595 GBP
View
13 more retailers have this diamond
Prices start from €37,568 EURSave up to €30,177 EUR

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
4.00ct Marquise
€37,568 EUR