Marquise|Natural|GIA

0.51ct J VS1 Marquise Natural Diamond

VG • J/VS1 • GIA 1309701203

Certificate GIA 1309701203

Diamond specifications and retailer prices

From $787 USD
As of November 4, 2026
Save $939 USD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,726 USD at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1309701203. Listed at 21 retailers as of November 2, 2026, with prices from $787 to $1,726, a $939 spread on the same certified stone. MOH London lists it at $1,726. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
J
Color
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1309701203
Dimensions8.53 × 4.28 × 2.49 mm
L/W Ratio1.99
Culet sizeNone
Top View
8.53 mm4.28 mm0.51 ctJ / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1309701203
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,726 USD|Low: $787 USD|High: $2,956 USD|Avg: $1,288 USD
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 10$787 USD
Retailer 11$795 USD
Retailer 3$854 USD
Retailer 13$887 USD
Retailer 4$985 USD
Retailer 9$1,015 USD
Retailer 6$1,058 USD
Retailer 7$1,085 USD
Retailer 2$1,216 USD
Retailer 12$1,417 USD
Retailer 8$1,454 USD
Retailer 5$1,523 USD
MOH London$1,726 USD
Retailer 14$2,956 USD

44 data points across 14 retailers

21 retailers$787 USD to $1,726 USD

B+
Cheapest Retailer
-
$787 USD
Final sale: no returns
Retailer 2
-
$795 USD
View
Price last confirmed 16 days ago
B
Retailer 3
-
$849 USD
View
Retailer 4
-
$854 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$854 USD
View
B+
Retailer 6
-
$865 USD
View
B
Retailer 7
-
$887 USD
View
B
Retailer 8
-
$965 USD
View
B
Retailer 9
-
$985 USD
View
B
Retailer 10
-
$1,015 USD
View
B
Retailer 11
-
$1,050 USD
View
B
Retailer 12
-
$1,050 USD
View
B
Retailer 13
-
$1,058 USD
View
B
Retailer 14
-
$1,080 USD
View
B
Retailer 15
-
$1,085 USD
View
B
Retailer 16
-
$1,216 USD
View
Retailer 17
-
$1,417 USD
View
Price last confirmed 33 days ago
B
Retailer 18
-
$1,454 USD
View
B
Retailer 19
-
$1,523 USD
View
Most Expensive
B
MOH London
E5E058AE3 · Nov 2
$1,726 USD
£1,359 GBP
View
19 more retailers have this diamond
Prices start from $787 USDSave up to $939 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.

B+
0.51ct Marquise
$787 USD