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Round|Natural|GIA

1.33ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2554658620

Certificate GIA 2554658620

Diamond specifications and retailer prices

From $3,246 SGD
As of November 4, 2026
Save $4,107 SGD (56%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,352 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.33ct natural round diamond

This 1.33ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554658620. Listed at 6 retailers as of November 4, 2026, with prices from $3,246 to $7,352, a $4,107 spread on the same certified stone. NZ Jewellers lists it at $7,352. 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

1.33
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2554658620
Dimensions7.10 × 7.06 × 4.28 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Cloud, Feather, Needle
Top View
7.10 mm7.06 mm1.33 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554658620
Side View
Table 60.0%Crown 32.5°Girdle: STK-STKPavilion 41°Culet: NoneDepth 60.4%

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 4
Current: $7,352 SGD|Low: $3,246 SGD|High: $7,352 SGD|Avg: $4,913 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$3,246 SGD
Retailer 6$3,410 SGD
Retailer 3$4,112 SGD
Retailer 2$4,142 SGD
Retailer 4$6,160 SGD
NZ Jewellers$7,352 SGD

22 data points across 6 retailers

6 retailers$3,246 SGD to $7,352 SGD

A
Cheapest Retailer
-
$3,246 SGD
Final sale: no returns
B+
Retailer 2
-
$3,410 SGD
View
B+
Retailer 3
-
$4,112 SGD
View
B+
Retailer 4
-
$4,142 SGD
View
B
Retailer 5
-
$6,160 SGD
View
Most Expensive
B
NZ Jewellers
f633a713-e111-4162-8048-10e89e15cc81 · Nov 5
$7,352 SGD
$5,756 USD
View
5 more retailers have this diamond
Prices start from $3,246 SGDSave up to $4,107 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
1.33ct Round
$3,246 SGD