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Marquise|Natural|GIA

3.12ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 10057224

Certificate GIA 10057224

Diamond specifications and retailer prices

From €40,851 EUR
$45,819 USD
As of November 2, 2026
Save €32,606 EUR (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €73,457 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 3.12ct natural marquise diamond

This 3.12ct natural marquise sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 10057224. Listed at 12 retailers as of November 2, 2026, with prices from €40,851 to €73,457, a €32,606 spread on the same certified stone. MOH London lists it at €73,457. 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

3.12
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 10057224
Dimensions15.04 × 7.88 × 4.58 mm
L/W Ratio1.91
Culet sizeNone
Top View
15.04 mm7.88 mm3.12 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 10057224
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.1%

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 2
Current: €73,457 EUR|Low: €40,851 EUR|High: €74,343 EUR|Avg: €51,852 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6€40,851 EUR
Retailer 2€42,967 EUR
Retailer 5€46,450 EUR
Retailer 4€47,912 EUR
Retailer 3€55,818 EUR
MOH London€73,457 EUR

46 data points across 6 retailers

12 retailers€40,851 EUR to €73,457 EUR

A
Cheapest Retailer
-
€40,851 EUR
$45,819 USD
A
Retailer 2
-
€42,967 EUR
₹4,589,705 INR
View
B+
Retailer 3
-
€45,237 EUR
A$78,059 AUD
View
B+
Retailer 4
-
€46,450 EUR
$52,098 USD
View
Final sale: no returns
B+
Retailer 5
-
€47,297 EUR
$53,049 USD
View
B+
Retailer 6
-
€47,912 EUR
£42,314 GBP
View
B+
Retailer 7
-
€49,287 EUR
$55,280 USD
View
B+
Retailer 8
-
€49,287 EUR
$55,280 USD
View
B
Retailer 9
-
€50,927 EUR
$57,120 USD
View
B
Retailer 10
-
€52,783 EUR
$59,202 USD
View
B
Retailer 11
-
€55,818 EUR
View
Most Expensive
B
MOH London
4BEEB8DCB · Nov 2
€73,457 EUR
£64,874 GBP
View
11 more retailers have this diamond
Prices start from €40,851 EURSave up to €32,606 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
3.12ct Marquise
€40,851 EUR