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Round|Natural|GIA

1.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6552711170

Certificate GIA 6552711170

Diamond specifications and retailer prices

From $2,304 SGD
As of November 4, 2026
Save $3,004 SGD (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,593 SGD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct 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 6552711170. Listed at 21 retailers as of November 4, 2026, with a 130% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.30
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552711170
Dimensions6.87 × 6.92 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.87 mm6.92 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552711170
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.9%

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 4
Current: $2,879 SGD|Low: $2,289 SGD|High: $5,591 SGD|Avg: $3,160 SGD|-4.6%
Retailer 1
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
Retailer 16
November 6, 2026
Retailer 2$2,304 SGD
Retailer 8$2,396 SGD
Retailer 15$2,414 SGD
Retailer 5$2,486 SGD
Retailer 9$2,491 SGD
Retailer 12$2,516 SGD
Retailer 16$2,523 SGD
Retailer 4$2,551 SGD
Retailer 1$2,879 SGD
Retailer 3$2,934 SGD
Retailer 6$3,129 SGD
Retailer 7$3,141 SGD
Retailer 10$3,252 SGD
Retailer 11$3,505 SGD
Retailer 13$3,674 SGD
Retailer 14$5,308 SGD

32 data points across 16 retailers

21 retailers$2,304 SGD to $5,308 SGD

A
Cheapest Retailer
-
$2,304 SGD
Retailer 2
-
$2,396 SGD
View
Price last confirmed 22 days ago
A
Retailer 3
-
$2,414 SGD
View
A
Retailer 4
-
$2,486 SGD
View
A
Retailer 5
-
$2,491 SGD
View
A
Retailer 6
-
$2,516 SGD
View
Final sale: no returns
A
Retailer 7
-
$2,523 SGD
View
A
Retailer 8
-
$2,551 SGD
View
A
Retailer 9
-
$2,879 SGD
View
A
Retailer 10
-
$2,934 SGD
View
Retailer 11
-
$3,039 SGD
View
Price last confirmed 21 days ago
Retailer 12
-
$3,129 SGD
View
Price last confirmed 21 days ago
Retailer 13
-
$3,141 SGD
View
Price last confirmed 21 days ago
Retailer 14
-
$3,154 SGD
View
Price last confirmed 29 days ago
Retailer 15
-
$3,179 SGD
View
Price last confirmed 22 days ago
A
Retailer 16
-
$3,252 SGD
View
B+
Retailer 17
-
$3,505 SGD
View
Retailer 18
-
$3,506 SGD
View
Price last confirmed 21 days ago
B+
Retailer 19
-
$3,674 SGD
View
B
Retailer 20
-
$5,308 SGD
View
Most Expensive
NZ Jewellers
6436d4c8-9028-4492-ac5c-9710bee4c788 · Oct 3
$6,593 SGD
$5,162 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from $2,304 SGDSave up to $3,004 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
1.30ct Round
$2,304 SGD