Marquise|Natural|GIA

0.51ct D FL Marquise Natural Diamond

EX • D/FL • GIA 6542407875

Certificate GIA 6542407875

Diamond specifications and retailer prices

From $3,455 USD
As of October 31, 2026
Save $869 USD (20%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,712 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542407875. Listed at 12 retailers as of October 31, 2026, with a 25% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Color
FL
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.1°
OriginNatural
Grading LabGIA
CertificateGIA 6542407875
Dimensions8.10 × 4.18 × 2.63 mm
L/W Ratio1.94
Top View
8.10 mm4.18 mm0.51 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542407875
Side View
Table 59.0%Crown 34.6°Girdle: STK-VTKPavilion 40.1°Culet: NoneDepth 63.0%

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: Oct 31
Current: $6,983 USD|Low: $1,539 USD|High: $7,230 USD|Avg: $4,202 USD|+2.2%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Taylor and Hart
October 31, 2026
Retailer 8$1,539 USD
Retailer 9$1,650 USD
Retailer 7$3,455 USD
Retailer 2$3,512 USD
Retailer 11$3,581 USD
Retailer 10$3,756 USD
Retailer 5$3,822 USD
Retailer 3$3,875 USD
Retailer 16$4,069 USD
Retailer 13$4,324 USD
Retailer 12$4,695 USD
Taylor and Hart$4,712 USD
Retailer 15$4,983 USD
Retailer 14$5,117 USD
Retailer 4$5,212 USD
Retailer 6$6,496 USD
Retailer 1$6,983 USD
Retailer 17$7,230 USD

8 data points across 18 retailers

12 retailers$3,455 USD to $4,324 USD

B+
Cheapest Retailer
-
$3,455 USD
B+
Retailer 2
-
$3,485 USD
View
B
Retailer 3
-
$3,512 USD
View
B
Retailer 4
-
$3,581 USD
View
B
Retailer 5
-
$3,756 USD
View
Final sale: no returns
B
Retailer 6
-
$3,875 USD
View
Retailer 7
-
$4,069 USD
View
Price last confirmed 39 days ago
B
Retailer 8
-
$4,324 USD
View
Retailer 9
-
$4,695 USD
View
Price under review
Most Expensive
Taylor and Hart
WF78PFZ · Oct 31
$4,712 USD
View
Price under review
9 more retailers have this diamond
Prices start from $3,455 USDSave up to $869 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
$3,455 USD