Radiant|Natural|GIA

1.20ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 7546246085

Certificate GIA 7546246085

Diamond specifications and retailer prices

From $6,278 NZD
As of November 3, 2026
Save $4,649 NZD (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,558 NZD at NZ Jewellers · As of September 29, 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 D 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 7546246085. Listed at 9 retailers as of November 2, 2026, with a 74% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle51.86°
Pavilion angle35.53°
OriginNatural
Grading LabGIA
CertificateGIA 7546246085
Dimensions6.87 × 5.30 × 3.65 mm
L/W Ratio1.30
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Pinpoint
Top View
6.87 mm5.30 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7546246085
Side View
Table 70.0%Crown 51.86°GirdlePavilion 35.53°CuletDepth 68.9%

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 3
Current: $6,373 NZD|Low: $6,278 NZD|High: $11,227 NZD|Avg: $8,485 NZD|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3$6,278 NZD
Retailer 1$6,373 NZD
Retailer 4$7,106 NZD
Retailer 5$7,217 NZD
Retailer 6$8,053 NZD
Retailer 7$9,258 NZD
Retailer 2$10,926 NZD
Retailer 8$11,164 NZD

33 data points across 8 retailers

9 retailers$6,278 NZD to $10,926 NZD

B+
Cheapest Retailer
-
$6,278 NZD
B+
Retailer 2
-
$6,373 NZD
View
Retailer 3
-
$6,635 NZD
View
Price last confirmed 46 days ago
Retailer 4
-
$6,635 NZD
View
Price last confirmed 30 days ago
Retailer 5
-
$6,889 NZD
View
Price last confirmed 38 days ago
Retailer 6
-
$7,106 NZD
View
Price last confirmed 30 days ago
B
Retailer 7
-
$10,926 NZD
View
Retailer 8
-
$11,558 NZD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
c75538bf-6f6b-417e-9330-9721063b6d7e · Sep 29
$11,558 NZD
$6,407 USD
View
Price last confirmed 38 days ago
8 more retailers have this diamond
Prices start from $6,278 NZDSave up to $4,649 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
$6,278 NZD