Marquise|Natural|GIA

0.51ct D IF Marquise Natural Diamond

EX • D/IF • GIA 2554900849

Certificate GIA 2554900849

Diamond specifications and retailer prices

From $835 USD
As of October 28, 2026
Save $979 USD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,102 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554900849. Listed at 11 retailers as of October 27, 2026, with a 117% 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
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.39°
Pavilion angle41.14°
OriginNatural
Grading LabGIA
CertificateGIA 2554900849
Dimensions7.75 × 4.19 × 2.68 mm
L/W Ratio1.85
Top View
7.75 mm4.19 mm0.51 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554900849
Side View
Table 61.0%Crown 38.39°Girdle: UNSPavilion 41.14°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
A+
Exceptional
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: $1,054 USD|Low: $835 USD|High: $2,042 USD|Avg: $1,339 USD|-7.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 6$835 USD
Retailer 1$1,054 USD
Retailer 3$1,090 USD
Retailer 7$1,194 USD
Retailer 8$1,196 USD
Retailer 5$1,209 USD
Retailer 2$1,319 USD
Retailer 9$1,407 USD
Retailer 10$1,676 USD
Retailer 4$1,814 USD

27 data points across 10 retailers

11 retailers$835 USD to $1,814 USD

A+
Cheapest Retailer
-
$835 USD
Final sale: no returns
A
Retailer 2
-
$1,054 USD
£830 GBP
View
Returns within 30 days
A
Retailer 3
-
$1,090 USD
View
Returns within 40 days
A
Retailer 4
-
$1,194 USD
View
Returns within 90 days
A
Retailer 5
-
$1,196 USD
€1,139 EUR
View
Returns within 100 days
A
Retailer 6
-
$1,209 USD
£952 GBP
View
Returns within 14 days
A
Retailer 7
-
$1,319 USD
A$2,029 AUD
View
Price last confirmed 25 days ago
A
Retailer 8
-
$1,407 USD
ZAR 22,738 ZAR
View
Returns within 7 days
B+
Retailer 9
-
$1,676 USD
£1,320 GBP
View
B+
Retailer 10
-
$1,814 USD
£1,428 GBP
View
Returns within 30 days
Most Expensive
B
NZ Jewellers
12d89cf9-1dbe-4673-8f98-420e5a117a3a · Oct 6
$3,102 USD
View
Price last confirmed 22 days ago
Returns within 30 days
10 more retailers have this diamond
Prices start from $835 USDSave up to $979 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
$835 USD