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Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2557770796

Certificate GIA 2557770796

Diamond specifications and retailer prices

From $3,076 SGD
HK$18,800 HKD
As of October 31, 2026
Save $3,876 SGD (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,952 SGD at NZ Jewellers · As of October 30, 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 2557770796. Listed at 24 retailers as of October 30, 2026, with prices from $3,076 to $6,952, a $3,876 spread on the same certified stone. NZ Jewellers lists it at $6,952. 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 angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557770796
Dimensions6.72 × 6.75 × 4.22 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.72 mm6.75 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557770796
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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: Oct 31
Current: $6,952 SGD|Low: $3,060 SGD|High: $6,978 SGD|Avg: $4,395 SGD
NZ Jewellers
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
October 31, 2026
Retailer 18$3,076 SGD
Retailer 2$3,103 SGD
Retailer 6$3,439 SGD
Retailer 8$3,461 SGD
Retailer 10$3,504 SGD
Retailer 5$3,573 SGD
Retailer 11$3,682 SGD
Retailer 3$3,851 SGD
Retailer 7$3,880 SGD
Retailer 4$3,990 SGD
Retailer 22$3,990 SGD
Retailer 24$4,143 SGD
Retailer 20$4,144 SGD
Retailer 19$4,173 SGD
Retailer 12$4,289 SGD
Retailer 21$4,557 SGD
Retailer 9$4,587 SGD
Retailer 14$4,604 SGD
Retailer 17$4,773 SGD
Retailer 13$4,904 SGD
Retailer 16$5,801 SGD
Retailer 15$5,964 SGD
Retailer 23$6,709 SGD
NZ Jewellers$6,952 SGD

24 data points across 24 retailers

24 retailers$3,076 SGD to $6,952 SGD

A
Cheapest Retailer
-
$3,076 SGD
HK$18,800 HKD
A
Retailer 2
-
$3,103 SGD
₹231,186 INR
View
A
Retailer 3
-
$3,439 SGD
$2,690 USD
View
A
Retailer 4
-
$3,461 SGD
A$4,166 AUD
View
A
Retailer 5
-
$3,504 SGD
View
A
Retailer 6
-
$3,573 SGD
$2,795 USD
View
A
Retailer 7
-
$3,682 SGD
$2,880 USD
View
Final sale: no returns
B+
Retailer 8
-
$3,851 SGD
$3,012 USD
View
B+
Retailer 9
-
$3,880 SGD
$3,035 USD
View
B+
Retailer 10
-
$3,990 SGD
$3,121 USD
View
B+
Retailer 11
-
$3,990 SGD
$3,121 USD
View
B+
Retailer 12
-
$4,143 SGD
$3,241 USD
View
B+
Retailer 13
-
$4,144 SGD
£2,552 GBP
View
B+
Retailer 14
-
$4,173 SGD
$3,264 USD
View
B+
Retailer 15
-
$4,289 SGD
View
Retailer 16
-
$4,432 SGD
A$5,334 AUD
View
Price last confirmed 27 days ago
B+
Retailer 17
-
$4,557 SGD
€3,395 EUR
View
B+
Retailer 18
-
$4,587 SGD
£2,825 GBP
View
B+
Retailer 19
-
$4,604 SGD
$3,601 USD
View
B+
Retailer 20
-
$4,904 SGD
ZAR 61,977 ZAR
View
B
Retailer 21
-
$5,801 SGD
$4,538 USD
View
B
Retailer 22
-
$5,964 SGD
$4,665 USD
View
B
Retailer 23
-
$6,709 SGD
£4,132 GBP
View
Most Expensive
B
NZ Jewellers
2083813b-8946-41b4-958e-caac659d28fe · Oct 30
$6,952 SGD
$5,438 USD
View
23 more retailers have this diamond
Prices start from $3,076 SGDSave up to $3,876 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
$3,076 SGD