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Marquise|Natural|GIA

1.51ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 6565816984

Certificate GIA 6565816984

Diamond specifications and retailer prices

From €3,622 EUR
As of November 6, 2026
Save €2,342 EUR (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €5,964 EUR at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6565816984. Listed at 9 retailers as of November 5, 2026, with prices from €3,622 to €5,964, a €2,342 spread on the same certified stone. Cape Diamonds lists it at €5,964. 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565816984
Dimensions11.28 × 6.06 × 3.79 mm
L/W Ratio1.86
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Pinpoint
Top View
11.28 mm6.06 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565816984
Side View
Table 62.0%CrownGirdlePavilionCulet: NDepth 62.6%

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: €5,964 EUR|Low: €3,622 EUR|High: €5,964 EUR|Avg: €5,072 EUR
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3€3,622 EUR
Retailer 2€4,263 EUR
Retailer 7€4,723 EUR
Retailer 4€4,743 EUR
Retailer 9€4,887 EUR
Retailer 5€5,026 EUR
Retailer 6€5,501 EUR
Retailer 8€5,640 EUR
Cape Diamonds€5,964 EUR

2 data points across 9 retailers

9 retailers€3,622 EUR to €5,964 EUR

B+
Cheapest Retailer
-
€3,622 EUR
B+
Retailer 2
-
€4,263 EUR
View
B+
Retailer 3
-
€4,723 EUR
View
B+
Retailer 4
-
€4,743 EUR
View
B+
Retailer 5
-
€4,887 EUR
View
B+
Retailer 6
-
€5,026 EUR
View
B
Retailer 7
-
€5,501 EUR
View
B
Retailer 8
-
€5,640 EUR
View
Most Expensive
B
Cape Diamonds
cert_6565816984 · Nov 5
€5,964 EUR
ZAR 107,582 ZAR
View
8 more retailers have this diamond
Prices start from €3,622 EURSave up to €2,342 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+
1.51ct Marquise
€3,622 EUR