Marquise|Natural|GIA

0.51ct D VS1 Marquise Natural Diamond

EX • D/VS1 • GIA 6551956987

Certificate GIA 6551956987

Diamond specifications and retailer prices

From $698 USD
₹66,488 INR
As of October 31, 2026
Save $1,176 USD (63%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,992 USD at NZ Jewellers · As of October 6, 2026
View at NZ Jewellers

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 VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551956987. Listed at 25 retailers as of October 27, 2026, with a 169% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
D
Color
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551956987
Dimensions8.12 × 4.10 × 2.59 mm
L/W Ratio1.98
Top View
8.12 mm4.10 mm0.51 ctD / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551956987
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.2%

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 31
Current: $698 USD|Low: $696 USD|High: $1,905 USD|Avg: $1,134 USD|-3.4%
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
October 31, 2026
Retailer 1$698 USD
Retailer 14$835 USD
Retailer 4$863 USD
Retailer 12$936 USD
Retailer 3$946 USD
Retailer 2$1,069 USD
Retailer 10$1,090 USD
Retailer 13$1,090 USD
Retailer 7$1,095 USD
Retailer 6$1,228 USD
Retailer 8$1,317 USD
Retailer 9$1,444 USD
Retailer 11$1,716 USD
Retailer 5$1,875 USD

27 data points across 14 retailers

25 retailers$698 USD to $1,875 USD

A
Cheapest Retailer
-
$698 USD
₹66,488 INR
A
Retailer 2
-
$835 USD
View
A
Retailer 3
-
$853 USD
A$1,313 AUD
View
A
Retailer 4
-
$863 USD
View
Final sale: no returns
A
Retailer 5
-
$936 USD
View
A
Retailer 6
-
$936 USD
View
Retailer 7
-
$936 USD
View
Price last confirmed 11 days ago
A
Retailer 8
-
$946 USD
View
Retailer 9
-
$954 USD
View
Price last confirmed 17 days ago
Retailer 10
-
$972 USD
View
Price last confirmed 14 days ago
A
Retailer 11
-
$972 USD
View
B+
Retailer 12
-
$1,069 USD
View
A
Retailer 13
-
$1,090 USD
£858 GBP
View
B+
Retailer 14
-
$1,090 USD
View
A
Retailer 15
-
$1,095 USD
£862 GBP
View
Retailer 16
-
$1,101 USD
View
Price last confirmed 17 days ago
B+
Retailer 17
-
$1,228 USD
View
B+
Retailer 18
-
$1,317 USD
€1,254 EUR
View
B+
Retailer 19
-
$1,444 USD
ZAR 23,331 ZAR
View
Retailer 20
-
$1,490 USD
A$2,293 AUD
View
Price last confirmed 26 days ago
B
Retailer 21
-
$1,716 USD
£1,351 GBP
View
B
Retailer 22
-
$1,875 USD
£1,476 GBP
View
Retailer 23
-
$2,934 USD
View
Price last confirmed 10 days ago
Retailer 24
-
$2,992 USD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
b8df9abc-f3b2-4070-a27f-a275e92ad464 · Oct 6
$2,992 USD
View
Price last confirmed 25 days ago
24 more retailers have this diamond
Prices start from $698 USDSave up to $1,176 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
0.51ct Marquise
$698 USD