CaratHunter
Plans
Marquise|Natural|GIA

0.51ct D FL Marquise Natural Diamond

EX • D/FL • GIA 6542407875

Certificate GIA 6542407875

Diamond specifications and retailer prices

From $6,231 NZD
As of November 4, 2026
Save $1,569 NZD (20%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,499 NZD 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 11 retailers as of November 4, 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $12,595 NZD|Low: $2,776 NZD|High: $13,042 NZD|Avg: $7,755 NZD|+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$2,776 NZD
Retailer 9$2,976 NZD
Retailer 7$6,231 NZD
Retailer 2$6,335 NZD
Retailer 11$6,460 NZD
Retailer 10$6,775 NZD
Retailer 5$6,895 NZD
Retailer 3$6,990 NZD
Retailer 16$7,340 NZD
Retailer 13$7,800 NZD
Retailer 12$8,469 NZD
Taylor and Hart$8,499 NZD
Retailer 15$8,989 NZD
Retailer 14$9,231 NZD
Retailer 4$9,402 NZD
Retailer 6$11,718 NZD
Retailer 1$12,595 NZD
Retailer 17$13,042 NZD

6 data points across 18 retailers

11 retailers$6,231 NZD to $7,800 NZD

B+
Cheapest Retailer
-
$6,231 NZD
B+
Retailer 2
-
$6,287 NZD
View
B
Retailer 3
-
$6,335 NZD
View
B
Retailer 4
-
$6,460 NZD
View
Retailer 5
-
$6,990 NZD
View
Price last confirmed 6 days ago
Retailer 6
-
$7,340 NZD
View
Price last confirmed 43 days ago
B
Retailer 7
-
$7,800 NZD
View
Retailer 8
-
$8,469 NZD
View
Price under review
Most Expensive
Taylor and Hart
WF78PFZ · Oct 31
$8,499 NZD
$4,712 USD
View
Price under review
8 more retailers have this diamond
Prices start from $6,231 NZDSave up to $1,569 NZD

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
$6,231 NZD