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Radiant|Natural|GIA

1.51ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 7542569108

Certificate GIA 7542569108

Diamond specifications and retailer prices

From $6,442 NZD
As of November 5, 2026
Save $7,634 NZD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $14,076 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 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 7542569108. Listed at 13 retailers as of November 5, 2026, with prices from $6,442 to $14,076, a $7,634 spread on the same certified stone. NZ Jewellers lists it at $14,076. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.72°
OriginNatural
Grading LabGIA
CertificateGIA 7542569108
Dimensions7.61 × 5.82 × 3.96 mm
L/W Ratio1.31
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
7.61 mm5.82 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7542569108
Side View
Table 68.0%Crown 45.72°Girdle: MED-STKPavilionCulet: NoneDepth 68.1%

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 5
Current: $14,076 NZD|Low: $6,972 NZD|High: $14,076 NZD|Avg: $9,121 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 7$6,972 NZD
Retailer 6$7,320 NZD
Retailer 8$7,320 NZD
Retailer 9$7,320 NZD
Retailer 2$8,184 NZD
Retailer 10$8,446 NZD
Retailer 3$8,592 NZD
Retailer 4$9,857 NZD
Retailer 5$12,833 NZD
NZ Jewellers$14,076 NZD

45 data points across 10 retailers

13 retailers$6,442 NZD to $14,076 NZD

A
Cheapest Retailer
-
$6,442 NZD
B+
Retailer 2
-
$6,875 NZD
View
B+
Retailer 3
-
$6,972 NZD
View
Retailer 4
-
$7,320 NZD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$7,320 NZD
View
B+
Retailer 6
-
$7,320 NZD
View
B+
Retailer 7
-
$8,184 NZD
View
B+
Retailer 8
-
$8,224 NZD
View
B+
Retailer 9
-
$8,446 NZD
View
B+
Retailer 10
-
$8,592 NZD
View
B+
Retailer 11
-
$9,857 NZD
View
B
Retailer 12
-
$12,833 NZD
View
Most Expensive
B
NZ Jewellers
83745427-245a-4899-9d78-a2aad90a0f91 · Nov 5
$14,076 NZD
$7,803 USD
View
12 more retailers have this diamond
Prices start from $6,442 NZDSave up to $7,634 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
$6,442 NZD