CaratHunter
Plans
Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1557218523

Certificate GIA 1557218523

Diamond specifications and retailer prices

From $2,526 SGD
As of November 6, 2026
Save $3,337 SGD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,015 SGD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1557218523. Listed at 20 retailers as of November 4, 2026, with a 132% 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1557218523
Dimensions6.77 × 6.80 × 4.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Indented Natural
Top View
6.77 mm6.80 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1557218523
Side View
Table 57.0%Crown 36°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 62.8%

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 6
Current: $4,182 SGD|Low: $2,526 SGD|High: $5,941 SGD|Avg: $3,693 SGD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$2,526 SGD
Retailer 2$2,617 SGD
Retailer 7$2,943 SGD
Retailer 3$3,210 SGD
Retailer 4$3,509 SGD
Retailer 5$3,530 SGD
Retailer 6$4,096 SGD
Retailer 1$4,182 SGD
Retailer 8$5,863 SGD

27 data points across 9 retailers

20 retailers$2,526 SGD to $5,863 SGD

A
Cheapest Retailer
-
$2,526 SGD
A
Retailer 2
-
$2,617 SGD
View
B+
Retailer 3
-
$2,943 SGD
View
B+
Retailer 4
-
$3,125 SGD
View
B+
Retailer 5
-
$3,127 SGD
View
B+
Retailer 6
-
$3,127 SGD
View
B+
Retailer 7
-
$3,210 SGD
View
Retailer 8
-
$3,355 SGD
View
Price last confirmed 39 days ago
Retailer 9
-
$3,355 SGD
View
Price last confirmed 25 days ago
B+
Retailer 10
-
$3,435 SGD
View
Retailer 11
-
$3,485 SGD
View
Price last confirmed 38 days ago
B
Retailer 12
-
$3,509 SGD
View
B+
Retailer 13
-
$3,530 SGD
View
B
Retailer 14
-
$3,536 SGD
View
Retailer 15
-
$3,872 SGD
View
Price last confirmed 38 days ago
B
Retailer 16
-
$4,096 SGD
View
B
Retailer 17
-
$4,182 SGD
View
B
Retailer 18
-
$5,863 SGD
View
Retailer 19
-
$7,015 SGD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
91146f89-0f16-4898-9c1f-0dc4da1ab6cd · Oct 3
$7,015 SGD
$5,474 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from $2,526 SGDSave up to $3,337 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
1.20ct Round
$2,526 SGD