Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7556359895

Certificate GIA 7556359895

Diamond specifications and retailer prices

From $3,782 SGD
$2,958 USD
As of October 30, 2026
Save $4,409 SGD (54%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $8,191 SGD at NZ Jewellers · As of October 20, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7556359895. Listed at 29 retailers as of October 30, 2026, with a 117% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7556359895
Dimensions6.76 × 6.80 × 4.24 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.76 mm6.80 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556359895
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,779 SGD|Low: $3,604 SGD|High: $7,957 SGD|Avg: $5,053 SGD|+2.2%
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
October 31, 2026
Retailer 2$3,782 SGD
Retailer 13$3,930 SGD
Retailer 5$3,973 SGD
Retailer 3$4,116 SGD
Retailer 10$4,260 SGD
Retailer 8$4,537 SGD
Retailer 12$4,830 SGD
Retailer 6$4,843 SGD
Retailer 4$5,036 SGD
Retailer 11$5,423 SGD
Retailer 7$5,505 SGD
Retailer 1$5,779 SGD
Retailer 9$7,905 SGD

37 data points across 13 retailers

29 retailers$3,782 SGD to $8,191 SGD

B+
Cheapest Retailer
-
$3,782 SGD
$2,958 USD
B+
Retailer 2
-
$3,930 SGD
$3,074 USD
View
Final sale: no returns
B+
Retailer 3
-
$3,973 SGD
$3,108 USD
View
B+
Retailer 4
-
$4,116 SGD
$3,220 USD
View
B+
Retailer 5
-
$4,260 SGD
$3,332 USD
View
Retailer 6
-
$4,260 SGD
$3,332 USD
View
Price last confirmed 24 days ago
Retailer 7
-
$4,260 SGD
$3,332 USD
View
Price last confirmed 24 days ago
Retailer 8
-
$4,260 SGD
$3,332 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$4,277 SGD
$3,345 USD
View
Retailer 10
-
$4,423 SGD
$3,460 USD
View
Price last confirmed 32 days ago
B+
Retailer 11
-
$4,537 SGD
£2,795 GBP
View
B+
Retailer 12
-
$4,641 SGD
$3,630 USD
View
B+
Retailer 13
-
$4,641 SGD
$3,630 USD
View
B
Retailer 14
-
$4,794 SGD
$3,750 USD
View
B
Retailer 15
-
$4,830 SGD
$3,778 USD
View
B+
Retailer 16
-
$4,843 SGD
£2,983 GBP
View
Retailer 17
-
$4,914 SGD
$3,844 USD
View
Price last confirmed 22 days ago
Retailer 18
-
$4,914 SGD
$3,844 USD
View
Price last confirmed 11 days ago
B
Retailer 19
-
$4,914 SGD
$3,844 USD
View
Retailer 20
-
$5,036 SGD
A$6,061 AUD
View
Price last confirmed 23 days ago
Retailer 21
-
$5,326 SGD
$4,166 USD
View
Price last confirmed 16 days ago
B
Retailer 22
-
$5,423 SGD
£3,340 GBP
View
B+
Retailer 23
-
$5,505 SGD
€4,101 EUR
View
B
Retailer 24
-
$5,779 SGD
ZAR 73,032 ZAR
View
B
Retailer 25
-
$7,905 SGD
£4,869 GBP
View
Retailer 26
-
$8,191 SGD
$6,407 USD
View
Price last confirmed 70 days ago
B
Retailer 27
-
$8,191 SGD
$6,407 USD
View
Retailer 28
-
$8,191 SGD
$6,407 USD
View
Price last confirmed 33 days ago
Most Expensive
NZ Jewellers
6cd2c71e-1897-451b-8e31-379ad3eed8b1 · Oct 20
$8,191 SGD
$6,407 USD
View
Price last confirmed 11 days ago
28 more retailers have this diamond
Prices start from $3,782 SGDSave up to $4,409 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.

B+
1.20ct Round
$3,782 SGD