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Radiant|Natural|GIA

1.20ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 2556242987

Certificate GIA 2556242987

Diamond specifications and retailer prices

From $8,983 NZD
As of November 7, 2026
Save $6,431 NZD (42%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $17,595 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556242987. Listed at 11 retailers as of November 7, 2026, with a 72% 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556242987
Dimensions8.01 × 4.95 × 3.41 mm
L/W Ratio1.62
Culet sizeNone
Top View
8.01 mm4.95 mm1.20 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556242987
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $17,595 NZD|Low: $9,351 NZD|High: $17,595 NZD|Avg: $12,669 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 4$9,351 NZD
Retailer 6$10,161 NZD
Retailer 2$10,273 NZD
Retailer 7$10,390 NZD
Retailer 10$10,593 NZD
Retailer 8$10,926 NZD
Retailer 3$11,188 NZD
Retailer 9$12,837 NZD
Retailer 5$15,414 NZD
NZ Jewellers$17,595 NZD

36 data points across 10 retailers

11 retailers$8,983 NZD to $15,414 NZD

B
Cheapest Retailer
-
$8,983 NZD
Retailer 2
-
$9,351 NZD
View
B
Retailer 3
-
$10,161 NZD
View
B
Retailer 4
-
$10,273 NZD
View
B
Retailer 5
-
$10,390 NZD
View
Retailer 6
-
$10,593 NZD
View
Price last confirmed 34 days ago
B
Retailer 7
-
$10,926 NZD
View
Retailer 8
-
$11,188 NZD
View
B
Retailer 9
-
$12,837 NZD
View
B
Retailer 10
-
$15,414 NZD
View
Most Expensive
NZ Jewellers
8dff9ef4-0ec0-42f9-87a1-6430ce89f376 · Nov 5
$17,595 NZD
$9,754 USD
View
Price under review
10 more retailers have this diamond
Prices start from $8,983 NZDSave up to $6,431 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 Radiant
$8,983 NZD