Marquise|Natural|GIA

3.12ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 1548415509

Certificate GIA 1548415509

Diamond specifications and retailer prices

From $39,782 USD
As of November 6, 2026
Save $29,542 USD (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $69,324 USD at MOH London · As of November 4, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1548415509. Listed at 15 retailers as of November 4, 2026, with prices from $39,782 to $69,324, a $29,542 spread on the same certified stone. MOH London lists it at $69,324. 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
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548415509
Dimensions15.67 × 7.68 × 4.57 mm
L/W Ratio2.04
Girdle conditionFaceted
Key to symbols
Twinning Wisp, Feather, Crystal, Natural
Top View
15.67 mm7.68 mm3.12 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548415509
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.5%

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 6
Current: $69,324 USD|Low: $39,782 USD|High: $72,295 USD|Avg: $49,819 USD|-4.1%
MOH London
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
November 6, 2026
Retailer 14$39,782 USD
Retailer 5$40,335 USD
Retailer 13$40,798 USD
Retailer 7$44,429 USD
Retailer 4$44,508 USD
Retailer 6$44,879 USD
Retailer 11$46,362 USD
Retailer 12$46,362 USD
Retailer 10$48,217 USD
Retailer 3$50,071 USD
Retailer 8$53,779 USD
Retailer 2$54,445 USD
Retailer 9$56,432 USD
MOH London$69,324 USD

37 data points across 14 retailers

15 retailers$39,782 USD to $69,324 USD

A
Cheapest Retailer
-
$39,782 USD
Retailer 2
-
$40,307 USD
View
Price last confirmed 51 days ago
A
Retailer 3
-
$40,335 USD
View
A
Retailer 4
-
$40,798 USD
View
Final sale: no returns
B+
Retailer 5
-
$44,429 USD
View
Retailer 6
-
$44,508 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$44,879 USD
View
B+
Retailer 8
-
$46,362 USD
View
B+
Retailer 9
-
$46,362 USD
View
B+
Retailer 10
-
$48,217 USD
View
B+
Retailer 11
-
$50,071 USD
View
B
Retailer 12
-
$53,779 USD
View
B
Retailer 13
-
$54,445 USD
View
Retailer 14
-
$56,432 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
AC9D95B13 · Nov 4
$69,324 USD
£54,586 GBP
View
14 more retailers have this diamond
Prices start from $39,782 USDSave up to $29,542 USD

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
$39,782 USD