Marquise|Natural|GIA

0.31ct I IF Marquise Natural Diamond

EX • I/IF • GIA 2556405200

Certificate GIA 2556405200

Diamond specifications and retailer prices

From $643 USD
€612 EUR
As of November 2, 2026
Save $235 USD (27%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,457 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded I colour (near-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 2556405200. Listed at 4 retailers as of November 2, 2026, with a 37% 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

0.31
Carat
I
Color
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556405200
Dimensions6.68 × 3.50 × 2.24 mm
L/W Ratio1.91
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
6.68 mm3.50 mm0.31 ctI / IF
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556405200
Side View
Table 59.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.9%

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 2
Current: $1,457 USD|Low: $549 USD|High: $1,471 USD|Avg: $832 USD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$549 USD
Retailer 5$611 USD
Retailer 4$643 USD
Retailer 3$694 USD
Retailer 2$878 USD
Retailer 6$945 USD
NZ Jewellers$1,457 USD

36 data points across 7 retailers

4 retailers$643 USD to $878 USD

B+
Cheapest Retailer
-
$643 USD
€612 EUR
B+
Retailer 2
-
$694 USD
£546 GBP
View
B
Retailer 3
-
$878 USD
£691 GBP
View
Most Expensive
NZ Jewellers
d78809be-0ce3-4b78-8fce-e834e288e005 · Oct 30
$1,457 USD
View
Price under review
3 more retailers have this diamond
Prices start from $643 USDSave up to $235 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+
0.31ct Marquise
$643 USD