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Round|Natural|GIA

1.20ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6521965860

Certificate GIA 6521965860

Diamond specifications and retailer prices

From $3,617 NZD
HK$15,900 HKD
As of November 1, 2026
Save $4,626 NZD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,837 NZD at NZ Jewellers · As of September 28, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6521965860. Listed at 18 retailers as of November 1, 2026, with a 128% 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6521965860
Dimensions6.79 × 6.74 × 4.20 mm
L/W Ratio1.01
Top View
6.79 mm6.74 mm1.20 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6521965860
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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: $4,958 NZD|Low: $3,617 NZD|High: $8,343 NZD|Avg: $5,028 NZD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$3,617 NZD
Retailer 3$3,799 NZD
Retailer 4$4,278 NZD
Retailer 9$4,342 NZD
Retailer 7$4,379 NZD
Retailer 8$4,506 NZD
Retailer 1$4,958 NZD
Retailer 2$5,849 NZD
Retailer 5$8,243 NZD

29 data points across 9 retailers

18 retailers$3,617 NZD to $8,243 NZD

A
Cheapest Retailer
-
$3,617 NZD
HK$15,900 HKD
A
Retailer 2
-
$3,799 NZD
₹203,598 INR
View
A
Retailer 3
-
$4,278 NZD
£1,895 GBP
View
A
Retailer 4
-
$4,342 NZD
$2,443 USD
View
Final sale: no returns
A
Retailer 5
-
$4,379 NZD
$2,464 USD
View
A
Retailer 6
-
$4,473 NZD
$2,517 USD
View
A
Retailer 7
-
$4,506 NZD
SGD 3,426 SGD
View
Retailer 8
-
$4,705 NZD
$2,647 USD
View
Price last confirmed 34 days ago
Retailer 9
-
$4,705 NZD
$2,647 USD
View
Price last confirmed 21 days ago
Retailer 10
-
$4,705 NZD
$2,647 USD
View
Price last confirmed 24 days ago
A
Retailer 11
-
$4,816 NZD
$2,710 USD
View
Retailer 12
-
$4,886 NZD
$2,749 USD
View
Price last confirmed 34 days ago
A
Retailer 13
-
$4,958 NZD
£2,197 GBP
View
A
Retailer 14
-
$5,025 NZD
SGD 3,821 SGD
View
Retailer 15
-
$5,430 NZD
$3,055 USD
View
Price last confirmed 33 days ago
B+
Retailer 16
-
$5,849 NZD
€3,134 EUR
View
B+
Retailer 17
-
$8,243 NZD
£3,652 GBP
View
Most Expensive
NZ Jewellers
7e56413a-2b21-4612-af47-d71e2a651bf6 · Sep 28
$9,837 NZD
$5,535 USD
View
Price last confirmed 35 days ago
17 more retailers have this diamond
Prices start from $3,617 NZDSave up to $4,626 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
$3,617 NZD