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2.55ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 828654342

Shape and cutting style on the report: Round brilliant

Certificate IGI 828654342

Diamond specifications and retailer prices

From $6,955 USD
As of November 5, 2026
Save $8,991 USD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $15,946 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.55ct natural round diamond

This 2.55ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 828654342. Listed at 16 retailers as of November 5, 2026, with prices from $6,955 to $15,946, a $8,991 spread on the same certified stone. NZ Jewellers lists it at $15,946. 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

2.55
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 828654342
Dimensions8.74 × 8.70 × 5.43 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.74 mm8.70 mm2.55 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 828654342
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $15,946 USD|Low: $6,955 USD|High: $16,280 USD|Avg: $10,031 USD|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 11$6,955 USD
Retailer 8$8,108 USD
Retailer 5$8,232 USD
Retailer 4$8,810 USD
Retailer 6$8,819 USD
Retailer 7$8,904 USD
Retailer 2$9,124 USD
Retailer 13$9,534 USD
Retailer 3$9,699 USD
Retailer 12$9,807 USD
Retailer 15$9,872 USD
Retailer 9$10,948 USD
Retailer 10$11,001 USD
Retailer 14$13,276 USD
NZ Jewellers$15,946 USD

17 data points across 15 retailers

16 retailers$6,955 USD to $15,946 USD

A
Cheapest Retailer
-
$6,955 USD
Retailer 2
-
$7,202 USD
View
Price last confirmed 23 days ago
A
Retailer 3
-
$8,108 USD
View
A
Retailer 4
-
$8,232 USD
View
A
Retailer 5
-
$8,810 USD
View
A
Retailer 6
-
$8,819 USD
View
Retailer 7
-
$8,904 USD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$9,124 USD
View
A
Retailer 9
-
$9,534 USD
View
A
Retailer 10
-
$9,699 USD
View
A
Retailer 11
-
$9,807 USD
View
A
Retailer 12
-
$9,872 USD
View
A
Retailer 13
-
$10,948 USD
View
A
Retailer 14
-
$11,001 USD
View
B+
Retailer 15
-
$13,276 USD
View
Most Expensive
B+
NZ Jewellers
41722f61-8fac-4ef7-af22-2433a7809c5f · Nov 5
$15,946 USD
View
15 more retailers have this diamond
Prices start from $6,955 USDSave up to $8,991 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
2.55ct Round
$6,955 USD