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Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 7553942310

Certificate GIA 7553942310

Diamond specifications and retailer prices

From €3,657 EUR
As of November 6, 2026
Save €4,087 EUR (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €8,391 EUR at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7553942310. Listed at 22 retailers as of November 4, 2026, with a 112% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7553942310
Dimensions12.52 × 5.27 × 3.09 mm
L/W Ratio2.38
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle, Indented Natural
Top View
12.52 mm5.27 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7553942310
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.7%

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 6
Current: €4,709 EUR|Low: €3,657 EUR|High: €7,847 EUR|Avg: €5,320 EUR|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 10€3,657 EUR
Retailer 4€3,790 EUR
Retailer 3€4,185 EUR
Retailer 7€4,425 EUR
Retailer 1€4,709 EUR
Retailer 5€4,729 EUR
Retailer 2€4,875 EUR
Retailer 9€5,495 EUR
Retailer 6€5,948 EUR
Retailer 11€7,103 EUR
Retailer 8€7,744 EUR

25 data points across 11 retailers

22 retailers€3,657 EUR to €7,744 EUR

B+
Cheapest Retailer
-
€3,657 EUR
B+
Retailer 2
-
€3,790 EUR
View
B
Retailer 3
-
€4,185 EUR
View
B
Retailer 4
-
€4,425 EUR
View
B
Retailer 5
-
€4,499 EUR
View
Final sale: no returns
B
Retailer 6
-
€4,576 EUR
View
B
Retailer 7
-
€4,577 EUR
View
Retailer 8
-
€4,648 EUR
View
Price last confirmed 11 days ago
B
Retailer 9
-
€4,709 EUR
View
B
Retailer 10
-
€4,729 EUR
View
Retailer 11
-
€4,875 EUR
View
Price last confirmed 9 days ago
Retailer 12
-
€4,875 EUR
View
Price last confirmed 22 days ago
Retailer 13
-
€4,914 EUR
View
Price last confirmed 29 days ago
B
Retailer 14
-
€5,012 EUR
View
Retailer 15
-
€5,017 EUR
View
Price last confirmed 37 days ago
Retailer 16
-
€5,017 EUR
View
Price last confirmed 37 days ago
B
Retailer 17
-
€5,495 EUR
View
Retailer 18
-
€5,790 EUR
View
Price last confirmed 39 days ago
B
Retailer 19
-
€5,948 EUR
View
Retailer 20
-
€7,103 EUR
View
Price last confirmed 10 days ago
B
Retailer 21
-
€7,744 EUR
View
Most Expensive
NZ Jewellers
2cfd165e-4653-47d8-a433-57989b77a399 · Sep 29
€8,391 EUR
$9,369 USD
View
Price last confirmed 38 days ago
21 more retailers have this diamond
Prices start from €3,657 EURSave up to €4,087 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+
1.20ct Marquise
€3,657 EUR