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Marquise|Natural|GIA

2.50ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 1568149277

Certificate GIA 1568149277

Diamond specifications and retailer prices

From $15,730 USD
As of November 6, 2026
Save $3,354 USD (18%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $19,084 USD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 2.5ct natural marquise diamond

This 2.5ct natural marquise sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1568149277. Listed at 2 retailers as of November 6, 2026, with prices from $15,730 to $19,084, a $3,354 spread on the same certified stone. 77 Diamonds lists it at $19,084. 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

2.50
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1568149277
Dimensions13.08 × 7.10 × 4.46 mm
L/W Ratio1.84
Top View
13.08 mm7.10 mm2.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1568149277
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: $19,084 USD|Low: $15,730 USD|High: $19,466 USD|Avg: $17,635 USD|+0.5%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2$15,730 USD
77 Diamonds$19,084 USD

45 data points across 2 retailers

2 retailers$15,730 USD to $19,084 USD

B+
Cheapest Retailer
-
$15,730 USD
Most Expensive
B
77 Diamonds
MQMBQEQWYUQR · Nov 6
$19,084 USD
£15,027 GBP
View
1 more retailer has this diamond
Prices start from $15,730 USDSave up to $3,354 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+
2.50ct Marquise
$15,730 USD