Marquise|Natural|GIA

3.11ct G SI1 Marquise Natural Diamond

EX • G/SI1

Diamond specifications and retailer prices

From €38,186 EUR
$42,830 USD
As of October 31, 2026
Save €13,877 EUR (27%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €52,063 EUR at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

About this 3.11ct natural marquise diamond

This 3.11ct natural marquise sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 12 retailers as of October 31, 2026, with prices from €38,186 to €52,063, a €13,877 spread on the same certified stone. The Diamond Guys lists it at €52,063. 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

3.11
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions15.82 × 7.33 × 4.53 mm
L/W Ratio2.16
Top View
15.82 mm7.33 mm3.11 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA
Side View
Table 60.0%CrownGirdle: THN-ETKPavilionCulet: SmallDepth 61.8%

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: €44,979 EUR|Low: €38,186 EUR|High: €52,063 EUR|Avg: €45,095 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
The Diamond Guys
October 16, 2026
Retailer 6€38,186 EUR
Retailer 8€41,621 EUR
Retailer 2€43,180 EUR
Retailer 1€44,979 EUR
Retailer 4€44,979 EUR
Retailer 7€46,677 EUR
Retailer 3€46,779 EUR
Retailer 5€48,578 EUR
The Diamond Guys€52,063 EUR

5 data points across 9 retailers

12 retailers€38,186 EUR to €52,063 EUR

B+
Cheapest Retailer
-
€38,186 EUR
$42,830 USD
B+
Retailer 2
-
€41,621 EUR
CA$64,837 CAD
View
Retailer 3
-
€43,180 EUR
$48,431 USD
View
Price last confirmed 8 days ago
B
Retailer 4
-
€44,979 EUR
$50,449 USD
View
Retailer 5
-
€44,979 EUR
$50,449 USD
View
Price last confirmed 30 days ago
B
Retailer 6
-
€44,979 EUR
$50,449 USD
View
B
Retailer 7
-
€46,677 EUR
$52,353 USD
View
Retailer 8
-
€46,779 EUR
$52,467 USD
View
Price last confirmed 29 days ago
B
Retailer 9
-
€46,779 EUR
$52,467 USD
View
Retailer 10
-
€48,578 EUR
$54,485 USD
View
Price last confirmed 29 days ago
B
Retailer 11
-
€48,578 EUR
$54,485 USD
View
Most Expensive
B
The Diamond Guys
1948249522 · Oct 31
€52,063 EUR
$58,394 USD
View
11 more retailers have this diamond
Prices start from €38,186 EURSave up to €13,877 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.

B+
3.11ct Marquise
€38,186 EUR