Marquise|Natural|GIA

0.51ct H I1 Marquise Natural Diamond

H/I1 • GIA 6521241419

Certificate GIA 6521241419

Diamond specifications and retailer prices

From $397 USD
₹37,783 INR
As of November 2, 2026
Save $279 USD (41%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $676 USD at B2C Jewels · As of November 2, 2026
View at B2C Jewels

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and I1 clarity (included) and certified by GIA 6521241419. Listed at 2 retailers as of November 2, 2026, with prices from $397 to $676, a $279 spread on the same certified stone. B2C Jewels lists it at $676. 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
H
Color
I1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6521241419
Dimensions8.24 × 3.88 × 2.76 mm
L/W Ratio2.12
Top View
8.24 mm3.88 mm0.51 ctH / I1
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6521241419
Side View
Table 63.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 71.0%

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: Nov 2
Current: $676 USD|Low: $396 USD|High: $676 USD|Avg: $538 USD|+1.5%
B2C Jewels
Retailer 2
November 2, 2026
Retailer 2$397 USD
B2C Jewels$676 USD

41 data points across 2 retailers

2 retailers$397 USD to $676 USD

B+
Cheapest Retailer
-
$397 USD
₹37,783 INR
Most Expensive
B
B2C Jewels
28954034 · Nov 2
$676 USD
View
1 more retailer has this diamond
Prices start from $397 USDSave up to $279 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
$397 USD