Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7556359895

Certificate GIA 7556359895

Diamond specifications and retailer prices

From $5,336 NZD
As of November 6, 2026
Save $6,222 NZD (54%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $11,558 NZD 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 28 retailers as of November 5, 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: Nov 6
Current: $6,824 NZD|Low: $5,085 NZD|High: $11,227 NZD|Avg: $7,066 NZD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 2$5,336 NZD
Retailer 12$5,545 NZD
Retailer 3$5,809 NZD
Retailer 10$6,011 NZD
Retailer 5$6,348 NZD
Retailer 11$6,815 NZD
Retailer 1$6,824 NZD
Retailer 4$7,106 NZD
Retailer 8$7,640 NZD
Retailer 6$7,706 NZD
Retailer 7$8,098 NZD
Retailer 9$11,065 NZD

37 data points across 12 retailers

28 retailers$5,336 NZD to $11,558 NZD

B+
Cheapest Retailer
-
$5,336 NZD
B+
Retailer 2
-
$5,545 NZD
View
Final sale: no returns
B+
Retailer 3
-
$5,607 NZD
View
B+
Retailer 4
-
$5,809 NZD
View
Retailer 5
-
$6,011 NZD
View
Price last confirmed 9 days ago
Retailer 6
-
$6,011 NZD
View
Price last confirmed 30 days ago
Retailer 7
-
$6,011 NZD
View
Price last confirmed 30 days ago
Retailer 8
-
$6,011 NZD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
$6,034 NZD
View
Retailer 10
-
$6,241 NZD
View
Price last confirmed 39 days ago
B+
Retailer 11
-
$6,348 NZD
View
B+
Retailer 12
-
$6,548 NZD
View
B+
Retailer 13
-
$6,548 NZD
View
B
Retailer 14
-
$6,765 NZD
View
B
Retailer 15
-
$6,815 NZD
View
B+
Retailer 16
-
$6,824 NZD
View
Retailer 17
-
$6,934 NZD
View
Price last confirmed 29 days ago
Retailer 18
-
$6,934 NZD
View
Price last confirmed 17 days ago
B
Retailer 19
-
$6,934 NZD
View
Retailer 20
-
$7,106 NZD
View
Price last confirmed 30 days ago
Retailer 21
-
$7,515 NZD
View
Price last confirmed 23 days ago
B+
Retailer 22
-
$7,640 NZD
View
B+
Retailer 23
-
$7,706 NZD
View
B
Retailer 24
-
$8,098 NZD
View
B
Retailer 25
-
$11,065 NZD
View
B
Retailer 26
-
$11,558 NZD
View
Retailer 27
-
$11,558 NZD
View
Price last confirmed 40 days ago
Most Expensive
NZ Jewellers
6cd2c71e-1897-451b-8e31-379ad3eed8b1 · Oct 20
$11,558 NZD
$6,407 USD
View
Price last confirmed 17 days ago
27 more retailers have this diamond
Prices start from $5,336 NZDSave up to $6,222 NZD

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
$5,336 NZD