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Marquise|Natural|IGI

2.51ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 779663216

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 779663216

Diamond specifications and retailer prices

From $10,050 USD
As of November 1, 2026
Save $4,226 USD (30%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $14,276 USD at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 779663216. Listed at 6 retailers as of October 31, 2026, with prices from $10,050 to $14,276, a $4,226 spread on the same certified stone. The Diamond Guys lists it at $14,276. 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

2.51
Carat
I
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.1°
Pavilion angle40°
OriginNatural
Grading LabIGI
CertificateIGI 779663216
Dimensions14.13 × 6.95 × 4.18 mm
L/W Ratio2.03
Girdle conditionFaceted
Culet sizePointed
Top View
14.13 mm6.95 mm2.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 779663216
Side View
Table 63.0%Crown 40.1°Girdle: MED-THKPavilion 40°Culet: NoneDepth 60.1%

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: $11,804 USD|Low: $9,032 USD|High: $16,662 USD|Avg: $12,544 USD|-18.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
The Diamond Guys
October 31, 2026
Retailer 6$9,032 USD
Retailer 3$10,050 USD
Retailer 2$10,200 USD
Retailer 5$11,764 USD
Retailer 1$11,804 USD
Retailer 4$12,394 USD
The Diamond Guys$14,276 USD
Retailer 7$16,662 USD

31 data points across 8 retailers

6 retailers$10,050 USD to $14,276 USD

A
Cheapest Retailer
-
$10,050 USD
A
Retailer 2
-
$10,200 USD
View
A
Retailer 3
-
$11,764 USD
View
A
Retailer 4
-
$11,804 USD
€11,242 EUR
View
A
Retailer 5
-
$12,394 USD
View
Most Expensive
B+
The Diamond Guys
1955283683 · Oct 31
$14,276 USD
View
5 more retailers have this diamond
Prices start from $10,050 USDSave up to $4,226 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
2.51ct Marquise
$10,050 USD