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Radiant|Natural|GIA

1.51ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 6545196733

Certificate GIA 6545196733

Diamond specifications and retailer prices

From $5,430 NZD
As of November 7, 2026
Save $4,300 NZD (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,730 NZD at NZ Jewellers · As of November 5, 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 6545196733. Listed at 10 retailers as of November 5, 2026, with prices from $5,430 to $9,730, a $4,300 spread on the same certified stone. NZ Jewellers lists it at $9,730. 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
OriginNatural
Grading LabGIA
CertificateGIA 6545196733
Dimensions7.58 × 5.59 × 3.85 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.58 mm5.59 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545196733
Side View
Table 64.0%CrownGirdlePavilionCulet: NoneDepth 68.8%

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 7
Current: $9,730 NZD|Low: $5,487 NZD|High: $9,730 NZD|Avg: $6,422 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 3$5,491 NZD
Retailer 6$5,585 NZD
Retailer 8$5,585 NZD
Retailer 2$5,778 NZD
Retailer 9$5,800 NZD
Retailer 7$6,444 NZD
Retailer 4$6,499 NZD
Retailer 5$6,817 NZD
NZ Jewellers$9,730 NZD

34 data points across 9 retailers

10 retailers$5,430 NZD to $9,730 NZD

B+
Cheapest Retailer
-
$5,430 NZD
B+
Retailer 2
-
$5,491 NZD
View
Retailer 3
-
$5,585 NZD
View
Price last confirmed 9 days ago
B
Retailer 4
-
$5,585 NZD
View
B+
Retailer 5
-
$5,778 NZD
View
B
Retailer 6
-
$5,800 NZD
View
B
Retailer 7
-
$6,444 NZD
View
B
Retailer 8
-
$6,499 NZD
View
B
Retailer 9
-
$6,817 NZD
View
Most Expensive
C
NZ Jewellers
0739118c-e27c-425e-bf0e-d7ea70c4c43b · Nov 5
$9,730 NZD
$5,394 USD
View
9 more retailers have this diamond
Prices start from $5,430 NZDSave up to $4,300 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+
1.51ct Radiant
$5,430 NZD