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Round|Natural|GIA

1.20ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6555412535

Certificate GIA 6555412535

Diamond specifications and retailer prices

From $1,972 SGD
As of November 6, 2026
Save $2,921 SGD (60%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,893 SGD at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555412535. Listed at 9 retailers as of November 5, 2026, with prices from $1,972 to $4,893, a $2,921 spread on the same certified stone. NZ Jewellers lists it at $4,893. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555412535
Dimensions6.71 × 6.76 × 4.20 mm
L/W Ratio1.01
Star length45%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Cavity, Feather, Needle, Natural
Top View
6.71 mm6.76 mm1.20 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555412535
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

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 6
Current: $4,893 SGD|Low: $1,971 SGD|High: $4,893 SGD|Avg: $2,541 SGD|+0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$1,972 SGD
Retailer 5$2,007 SGD
Retailer 7$2,007 SGD
Retailer 8$2,099 SGD
Retailer 9$2,114 SGD
Retailer 6$2,314 SGD
Retailer 4$2,449 SGD
Retailer 3$2,718 SGD
NZ Jewellers$4,893 SGD

40 data points across 9 retailers

9 retailers$1,972 SGD to $4,893 SGD

A
Cheapest Retailer
-
$1,972 SGD
A
Retailer 2
-
$2,007 SGD
View
Retailer 3
-
$2,007 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$2,099 SGD
View
B+
Retailer 5
-
$2,114 SGD
View
B+
Retailer 6
-
$2,314 SGD
View
B+
Retailer 7
-
$2,449 SGD
View
B+
Retailer 8
-
$2,718 SGD
View
Most Expensive
C
NZ Jewellers
54b1ff15-49cf-4bc5-b5df-5bc48f4b0db9 · Nov 5
$4,893 SGD
$3,831 USD
View
8 more retailers have this diamond
Prices start from $1,972 SGDSave up to $2,921 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
$1,972 SGD