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Round|Natural|GIA

2.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6541799178

Certificate GIA 6541799178

Diamond specifications and retailer prices

From $12,810 SGD
As of November 6, 2026
Save $7,033 SGD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $19,843 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.5ct natural round diamond

This 2.5ct 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 GIA 6541799178. Listed at 11 retailers as of November 5, 2026, with prices from $12,810 to $19,843, a $7,033 spread on the same certified stone. NZ Jewellers lists it at $19,843. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6541799178
Dimensions8.68 × 8.64 × 5.42 mm
L/W Ratio1.00
Star length55%
Top View
8.68 mm8.64 mm2.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541799178
Side View
Table 56.0%Crown 36.5°GirdlePavilion 40.6°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
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 6
Current: $19,843 SGD|Low: $12,810 SGD|High: $19,843 SGD|Avg: $15,305 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 4$12,810 SGD
Retailer 9$13,142 SGD
Retailer 8$13,143 SGD
Retailer 2$13,624 SGD
Retailer 11$14,237 SGD
Retailer 3$14,456 SGD
Retailer 7$14,951 SGD
Retailer 5$16,348 SGD
Retailer 10$16,427 SGD
Retailer 6$18,544 SGD
NZ Jewellers$19,843 SGD

29 data points across 11 retailers

11 retailers$12,810 SGD to $19,843 SGD

A
Cheapest Retailer
-
$12,810 SGD
Retailer 2
-
$13,142 SGD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$13,143 SGD
View
A
Retailer 4
-
$13,624 SGD
View
A
Retailer 5
-
$14,237 SGD
View
A
Retailer 6
-
$14,456 SGD
View
A
Retailer 7
-
$14,951 SGD
View
B+
Retailer 8
-
$16,348 SGD
View
B+
Retailer 9
-
$16,427 SGD
View
B+
Retailer 10
-
$18,544 SGD
View
Most Expensive
B+
NZ Jewellers
55130f87-974a-47b4-9126-a31325fafd30 · Nov 5
$19,843 SGD
$15,535 USD
View
10 more retailers have this diamond
Prices start from $12,810 SGDSave up to $7,033 SGD

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
2.50ct Round
$12,810 SGD