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Marquise|Natural|GIA

0.40ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 1557825111

Certificate GIA 1557825111

Diamond specifications and retailer prices

From €278 EUR
SGD 421 SGD
As of November 2, 2026
Save €79 EUR (22%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €357 EUR at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1557825111. Listed at 2 retailers as of November 2, 2026, with prices from €278 to €357, a €79 spread on the same certified stone. 77 Diamonds lists it at €357. 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

0.40
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1557825111
Dimensions6.84 × 3.81 × 2.57 mm
L/W Ratio1.80
Culet sizeNone
Key to symbols
Cloud, Crystal, Knot, Feather
Top View
6.84 mm3.81 mm0.40 ctI / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 1557825111
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 67.5%

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: €357 EUR|Low: €278 EUR|High: €357 EUR|Avg: €324 EUR|+3.3%
77 Diamonds
Retailer 2
November 2, 2026
Retailer 2€278 EUR
77 Diamonds€357 EUR

39 data points across 2 retailers

2 retailers€278 EUR to €357 EUR

B+
Cheapest Retailer
-
€278 EUR
SGD 421 SGD
Most Expensive
B
77 Diamonds
MQCPRUKVSJ47 · Nov 2
€357 EUR
£315 GBP
View
1 more retailer has this diamond
Prices start from €278 EURSave up to €79 EUR

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+
0.40ct Marquise
€278 EUR