CaratHunter
Plans
Radiant|Natural|GIA

1.56ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2237400920

Certificate GIA 2237400920

Diamond specifications and retailer prices

From $12,243 AUD
As of November 4, 2026
Save $7,926 AUD (39%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $21,582 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.56ct natural radiant diamond

This 1.56ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2237400920. Listed at 8 retailers as of November 4, 2026, with a 65% 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

1.56
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2237400920
Dimensions7.31 × 6.16 × 4.22 mm
L/W Ratio1.19
Culet sizeNone
Top View
7.31 mm6.16 mm1.56 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2237400920
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.5%

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 4
Current: $21,582 AUD|Low: $12,949 AUD|High: $21,582 AUD|Avg: $16,292 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7$12,949 AUD
Retailer 6$14,029 AUD
Retailer 2$14,162 AUD
Retailer 5$14,244 AUD
Retailer 8$16,187 AUD
Retailer 3$16,223 AUD
Retailer 4$20,169 AUD
NZ Jewellers$21,582 AUD

45 data points across 8 retailers

8 retailers$12,243 AUD to $20,169 AUD

B+
Cheapest Retailer
-
$12,243 AUD
B
Retailer 2
-
$14,029 AUD
View
B
Retailer 3
-
$14,162 AUD
View
B
Retailer 4
-
$14,244 AUD
View
B
Retailer 5
-
$16,187 AUD
View
B
Retailer 6
-
$16,223 AUD
View
B
Retailer 7
-
$20,169 AUD
View
Most Expensive
NZ Jewellers
30ab24eb-27e8-450a-ba34-a86697730a00 · Oct 30
$21,582 AUD
$14,829 USD
View
Price last confirmed 7 days ago
7 more retailers have this diamond
Prices start from $12,243 AUDSave up to $7,926 AUD

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+
1.56ct Radiant
$12,243 AUD