CaratHunter
Plans
Marquise|Natural|IGI

1.51ct K SI1 Marquise Natural Diamond

VG • K/SI1 • IGI 792677969

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 792677969

Diamond specifications and retailer prices

From $2,757 USD
As of November 5, 2026
Save $2,170 USD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,927 USD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 and certified by IGI 792677969. Listed at 9 retailers as of November 5, 2026, with prices from $2,757 to $4,927, a $2,170 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,927. 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
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.7°
Pavilion angle37.7°
OriginNatural
Grading LabIGI
CertificateIGI 792677969
Dimensions12.32 × 5.76 × 3.40 mm
L/W Ratio2.14
Girdle conditionFaceted
Culet sizePointed
Top View
12.32 mm5.76 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 792677969
Side View
Table 60.0%Crown 38.7°Girdle: MED-THKPavilion 37.7°Culet: NoneDepth 59.0%

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 5
Current: $3,582 USD|Low: $2,743 USD|High: $5,399 USD|Avg: $3,591 USD|-9.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$2,757 USD
Retailer 5$2,902 USD
Retailer 4$2,915 USD
Retailer 2$3,205 USD
Retailer 6$3,470 USD
Retailer 7$3,556 USD
Retailer 1$3,582 USD
Wholesale Diamonds Direct$4,927 USD

45 data points across 8 retailers

9 retailers$2,757 USD to $4,927 USD

A
Cheapest Retailer
-
$2,757 USD
A
Retailer 2
-
$2,902 USD
View
A
Retailer 3
-
$2,915 USD
View
A
Retailer 4
-
$3,205 USD
View
A
Retailer 5
-
$3,470 USD
View
A
Retailer 6
-
$3,556 USD
View
B+
Retailer 7
-
$3,582 USD
View
B+
Retailer 8
-
$3,598 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
262936449 · Nov 6
$4,927 USD
View
8 more retailers have this diamond
Prices start from $2,757 USDSave up to $2,170 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
$2,757 USD