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Radiant|Natural|GIA

1.51ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 1555466812

Certificate GIA 1555466812

Diamond specifications and retailer prices

From $3,566 NZD
As of November 2, 2026
Save $5,233 NZD (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,799 NZD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded L 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 1555466812. Listed at 6 retailers as of November 2, 2026, with prices from $3,566 to $8,799, a $5,233 spread on the same certified stone. NZ Jewellers lists it at $8,799. 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

1.51
Carat
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.67°
Pavilion angle36.47°
OriginNatural
Grading LabGIA
CertificateGIA 1555466812
Dimensions7.43 × 5.77 × 3.95 mm
L/W Ratio1.29
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Knot, Crystal, Feather, Cavity, Needle, Indented Natural
Top View
7.43 mm5.77 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555466812
Side View
Table 72.0%Crown 51.67°GirdlePavilion 36.47°Culet: NoneDepth 68.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $8,799 NZD|Low: $3,565 NZD|High: $8,843 NZD|Avg: $4,452 NZD|+12.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$3,566 NZD
Retailer 3$3,608 NZD
Retailer 5$3,662 NZD
Retailer 4$3,671 NZD
Retailer 7$3,747 NZD
Retailer 6$3,774 NZD
NZ Jewellers$8,799 NZD

30 data points across 7 retailers

6 retailers$3,566 NZD to $8,799 NZD

A
Cheapest Retailer
-
$3,566 NZD
A
Retailer 2
-
$3,608 NZD
View
A
Retailer 3
-
$3,662 NZD
View
A
Retailer 4
-
$3,671 NZD
View
A
Retailer 5
-
$3,774 NZD
View
Most Expensive
C
NZ Jewellers
34cf551a-4df4-4abe-a9d9-3085f83ced77 · Nov 3
$8,799 NZD
$4,878 USD
View
5 more retailers have this diamond
Prices start from $3,566 NZDSave up to $5,233 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
1.51ct Radiant
$3,566 NZD