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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 2554673570

Certificate GIA 2554673570

Diamond specifications and retailer prices

From €5,579 EUR
$6,257 USD
As of November 1, 2026
Save €5,422 EUR (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €11,000 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2554673570. Listed at 15 retailers as of October 30, 2026, with prices from €5,579 to €11,000, a €5,422 spread on the same certified stone. NZ Jewellers lists it at €11,000. 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

1.51
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554673570
Dimensions6.02 × 11.23 × 3.76 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather, Needle
Top View
6.02 mm11.23 mm1.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554673570
Side View
Table 54.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
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: Nov 1
Current: €11,000 EUR|Low: €5,579 EUR|High: €11,286 EUR|Avg: €6,810 EUR|-2.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 14€5,579 EUR
Retailer 15€5,777 EUR
Retailer 6€5,785 EUR
Retailer 7€5,911 EUR
Retailer 10€6,018 EUR
Retailer 4€6,071 EUR
Retailer 3€6,081 EUR
Retailer 11€6,097 EUR
Retailer 9€6,187 EUR
Retailer 5€6,439 EUR
Retailer 13€6,520 EUR
Retailer 2€6,620 EUR
Retailer 8€7,523 EUR
Retailer 12€9,087 EUR
NZ Jewellers€11,000 EUR

31 data points across 15 retailers

15 retailers€5,579 EUR to €11,000 EUR

A
Cheapest Retailer
-
€5,579 EUR
$6,257 USD
B+
Retailer 2
-
€5,777 EUR
$6,480 USD
View
B+
Retailer 3
-
€5,785 EUR
$6,489 USD
View
Retailer 4
-
€5,911 EUR
SGD 8,959 SGD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
€6,018 EUR
$6,750 USD
View
Final sale: no returns
B+
Retailer 6
-
€6,071 EUR
$6,809 USD
View
B+
Retailer 7
-
€6,081 EUR
$6,820 USD
View
B+
Retailer 8
-
€6,097 EUR
£5,385 GBP
View
B+
Retailer 9
-
€6,187 EUR
£5,464 GBP
View
Retailer 10
-
€6,439 EUR
A$11,111 AUD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
€6,520 EUR
$7,313 USD
View
B+
Retailer 12
-
€6,620 EUR
$7,425 USD
View
B
Retailer 13
-
€7,523 EUR
$8,438 USD
View
B
Retailer 14
-
€9,087 EUR
£8,025 GBP
View
Most Expensive
B
NZ Jewellers
c49883fe-d6f6-4c4c-9c3e-40419c4a033f · Oct 30
€11,000 EUR
$12,338 USD
View
14 more retailers have this diamond
Prices start from €5,579 EURSave up to €5,422 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.

A
1.51ct Marquise
€5,579 EUR