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Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2507071877

Certificate GIA 2507071877

Diamond specifications and retailer prices

From $6,102 NZD
As of November 1, 2026
Save $6,086 NZD (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $13,333 NZD 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2507071877. Listed at 17 retailers as of November 1, 2026, with a 100% 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2507071877
Dimensions6.82 × 6.77 × 4.22 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.82 mm6.77 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2507071877
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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 1
Current: $13,333 NZD|Low: $6,102 NZD|High: $13,333 NZD|Avg: $8,203 NZD
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
November 6, 2026
Retailer 6$6,102 NZD
Retailer 13$6,226 NZD
Retailer 7$6,244 NZD
Retailer 2$6,717 NZD
Retailer 4$6,932 NZD
Retailer 5$6,932 NZD
Retailer 14$7,002 NZD
Retailer 15$7,199 NZD
Retailer 16$7,270 NZD
Retailer 11$7,715 NZD
Retailer 9$8,000 NZD
Retailer 17$8,078 NZD
Retailer 10$8,211 NZD
Retailer 8$8,660 NZD
Retailer 3$11,177 NZD
Retailer 12$12,187 NZD
NZ Jewellers$13,333 NZD

35 data points across 17 retailers

17 retailers$6,102 NZD to $12,187 NZD

A
Cheapest Retailer
-
$6,102 NZD
A
Retailer 2
-
$6,226 NZD
View
A
Retailer 3
-
$6,244 NZD
View
B+
Retailer 4
-
$6,717 NZD
View
B+
Retailer 5
-
$6,932 NZD
View
Retailer 6
-
$6,932 NZD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$7,002 NZD
View
Retailer 8
-
$7,199 NZD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$7,270 NZD
View
B+
Retailer 10
-
$7,715 NZD
View
B+
Retailer 11
-
$8,000 NZD
View
B+
Retailer 12
-
$8,078 NZD
View
B+
Retailer 13
-
$8,211 NZD
View
Retailer 14
-
$8,660 NZD
View
Price last confirmed 14 days ago
B
Retailer 15
-
$11,177 NZD
View
B
Retailer 16
-
$12,187 NZD
View
Most Expensive
NZ Jewellers
1060eb82-9990-42f9-97a0-fa67a846bcfc · Oct 30
$13,333 NZD
$7,495 USD
View
Price last confirmed 7 days ago
16 more retailers have this diamond
Prices start from $6,102 NZDSave up to $6,086 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.

A
1.20ct Round
$6,102 NZD