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Radiant|Natural|GIA

1.20ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 6521400249

Certificate GIA 6521400249

Diamond specifications and retailer prices

From $2,516 NZD
As of November 6, 2026
Save $3,242 NZD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,087 NZD at NZ Jewellers · As of October 17, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6521400249. Listed at 18 retailers as of November 4, 2026, with a 129% 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6521400249
Dimensions7.24 × 5.37 × 3.59 mm
L/W Ratio1.35
Top View
7.24 mm5.37 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521400249
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.9%

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: $3,175 NZD|Low: $2,516 NZD|High: $5,872 NZD|Avg: $3,722 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 2$2,516 NZD
Retailer 5$2,643 NZD
Retailer 9$3,146 NZD
Retailer 1$3,175 NZD
Retailer 6$3,198 NZD
Retailer 7$3,505 NZD
Retailer 3$3,543 NZD
Retailer 4$3,658 NZD
Retailer 10$4,023 NZD
Retailer 8$4,479 NZD
Retailer 11$5,758 NZD

28 data points across 11 retailers

18 retailers$2,516 NZD to $5,758 NZD

A
Cheapest Retailer
-
$2,516 NZD
A
Retailer 2
-
$2,643 NZD
View
A
Retailer 3
-
$3,146 NZD
View
A
Retailer 4
-
$3,175 NZD
View
A
Retailer 5
-
$3,182 NZD
View
A
Retailer 6
-
$3,198 NZD
View
Retailer 7
-
$3,316 NZD
View
Price last confirmed 22 days ago
Retailer 8
-
$3,316 NZD
View
Price last confirmed 20 days ago
Retailer 9
-
$3,469 NZD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
$3,503 NZD
View
B+
Retailer 11
-
$3,505 NZD
View
B+
Retailer 12
-
$3,543 NZD
View
B+
Retailer 13
-
$3,658 NZD
View
Retailer 14
-
$3,826 NZD
View
Price last confirmed 19 days ago
B+
Retailer 15
-
$4,023 NZD
View
B+
Retailer 16
-
$4,479 NZD
View
B
Retailer 17
-
$5,758 NZD
View
Most Expensive
NZ Jewellers
5544a268-c8f8-424f-a9e6-e1c5fe161a91 · Oct 17
$8,087 NZD
$4,483 USD
View
Price last confirmed 20 days ago
17 more retailers have this diamond
Prices start from $2,516 NZDSave up to $3,242 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 Radiant
$2,516 NZD