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Marquise|Natural|GIA

1.51ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 5556531806

Certificate GIA 5556531806

Diamond specifications and retailer prices

From $10,715 USD
As of November 6, 2026
Save $6,908 USD (39%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $17,623 USD at NZ Jewellers · As of November 5, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5556531806. Listed at 11 retailers as of November 5, 2026, with prices from $10,715 to $17,623, a $6,908 spread on the same certified stone. NZ Jewellers lists it at $17,623. 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
H
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556531806
Dimensions10.98 × 5.75 × 3.67 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural, Needle, Natural
Top View
10.98 mm5.75 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556531806
Side View
Table 61.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $10,954 USD|Low: $10,954 USD|High: $16,713 USD|Avg: $13,441 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$10,954 USD
Retailer 3$11,315 USD
Retailer 7$11,487 USD
Retailer 2$11,849 USD
Retailer 6$13,268 USD
Retailer 4$15,427 USD
Retailer 5$16,469 USD

40 data points across 7 retailers

11 retailers$10,715 USD to $17,623 USD

B
Cheapest Retailer
-
$10,715 USD
B
Retailer 2
-
$10,954 USD
View
B
Retailer 3
-
$11,315 USD
View
Retailer 4
-
$11,487 USD
View
Price last confirmed 15 days ago
B
Retailer 5
-
$11,796 USD
View
B
Retailer 6
-
$11,849 USD
View
B
Retailer 7
-
$12,596 USD
View
B
Retailer 8
-
$13,268 USD
View
B
Retailer 9
-
$15,427 USD
View
B
Retailer 10
-
$16,469 USD
View
Most Expensive
C
NZ Jewellers
01211c48-ab80-4a2d-a4fc-f3dd241d3655 · Nov 5
$17,623 USD
View
10 more retailers have this diamond
Prices start from $10,715 USDSave up to $6,908 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
1.51ct Marquise
$10,715 USD