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Marquise|Natural|GIA

1.51ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 6562704863

Certificate GIA 6562704863

Diamond specifications and retailer prices

From $7,720 USD
As of October 28, 2026
Save $7,618 USD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $17,584 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two 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 6562704863. Listed at 11 retailers as of October 27, 2026, with a 99% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6562704863
Dimensions11.56 × 5.98 × 3.71 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Pinpoint, Indented Natural, Natural
Top View
11.56 mm5.98 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6562704863
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.0%

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: Oct 28
Current: $17,584 USD|Low: $7,720 USD|High: $17,584 USD|Avg: $12,828 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 28, 2026
Retailer 4$7,720 USD
Retailer 7$7,825 USD
Retailer 2$7,927 USD
Retailer 6$8,503 USD
Retailer 5$8,689 USD
Retailer 3$13,239 USD
Retailer 11$13,446 USD
Retailer 9$13,963 USD
Retailer 10$14,091 USD
Retailer 8$15,338 USD
MOH London$17,584 USD

5 data points across 11 retailers

11 retailers$7,720 USD to $15,338 USD

A
Cheapest Retailer
-
$7,720 USD
A
Retailer 2
-
$7,825 USD
View
A
Retailer 3
-
$7,927 USD
View
B+
Retailer 4
-
$8,503 USD
£6,695 GBP
View
B+
Retailer 5
-
$8,689 USD
£6,842 GBP
View
Retailer 6
-
$13,239 USD
View
Price last confirmed 8 days ago
Retailer 7
-
$13,446 USD
View
Price last confirmed 7 days ago
B
Retailer 8
-
$13,963 USD
View
Retailer 9
-
$14,091 USD
€13,420 EUR
View
Price last confirmed 7 days ago
B
Retailer 10
-
$15,338 USD
View
Most Expensive
MOH London
633818719 · Oct 26
$17,584 USD
£13,846 GBP
View
Price last confirmed 7 days ago
10 more retailers have this diamond
Prices start from $7,720 USDSave up to $7,618 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
1.51ct Marquise
$7,720 USD