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Marquise|Natural|GIA

1.51ct F SI2 Marquise Natural Diamond

ID • F/SI2 • GIA 5556577202

Certificate GIA 5556577202

Diamond specifications and retailer prices

From $7,296 USD
As of November 2, 2026
Save $5,656 USD (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $12,952 USD at NZ Jewellers · As of November 3, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556577202. Listed at 6 retailers as of November 2, 2026, with prices from $7,296 to $12,952, a $5,656 spread on the same certified stone. NZ Jewellers lists it at $12,952. 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

1.51
Carat
F
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle40.34°
Pavilion angle38.91°
OriginNatural
Grading LabGIA
CertificateGIA 5556577202
Dimensions10.69 × 6.01 × 3.76 mm
L/W Ratio1.78
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Knot, Feather, Crystal, Cavity
Top View
10.69 mm6.01 mm1.51 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5556577202
Side View
Table 63.0%Crown 40.34°Girdle: THK-VTKPavilion 38.91°Culet: NoneDepth 62.6%

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 2
Current: $12,952 USD|Low: $6,940 USD|High: $13,474 USD|Avg: $9,161 USD|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2$7,296 USD
Retailer 6$7,320 USD
Retailer 5$7,744 USD
Retailer 4$7,863 USD
Retailer 3$10,792 USD
NZ Jewellers$12,952 USD

28 data points across 6 retailers

6 retailers$7,296 USD to $12,952 USD

A
Cheapest Retailer
-
$7,296 USD
A
Retailer 2
-
$7,320 USD
View
A
Retailer 3
-
$7,744 USD
View
A
Retailer 4
-
$7,863 USD
View
B+
Retailer 5
-
$10,792 USD
View
Most Expensive
B
NZ Jewellers
e3c68807-8ece-4c9c-87ec-c0e815e56356 · Nov 3
$12,952 USD
View
5 more retailers have this diamond
Prices start from $7,296 USDSave up to $5,656 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.

A
1.51ct Marquise
$7,296 USD