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Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

ID • E/SI1 • GIA 6515595253

Certificate GIA 6515595253

Diamond specifications and retailer prices

From $11,745 NZD
As of November 6, 2026
Save $3,792 NZD (24%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $15,537 NZD at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E 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 6515595253. Listed at 10 retailers as of November 6, 2026, with prices from $11,745 to $15,537, a $3,792 spread on the same certified stone. Yorxs lists it at $15,537. 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.81°
Pavilion angle30.09°
OriginNatural
Grading LabGIA
CertificateGIA 6515595253
Dimensions7.39 × 5.70 × 3.83 mm
L/W Ratio1.30
Top View
7.39 mm5.70 mm1.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6515595253
Side View
Table 67.0%Crown 44.81°Girdle: ThickPavilion 30.09°Culet: NoneDepth 67.2%

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 6
Current: $13,482 NZD|Low: $11,743 NZD|High: $20,166 NZD|Avg: $14,193 NZD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Yorxs
November 7, 2026
Retailer 12$11,745 NZD
Retailer 10$11,998 NZD
Retailer 5$12,380 NZD
Retailer 7$12,380 NZD
Retailer 11$13,333 NZD
Retailer 1$13,482 NZD
Retailer 8$13,807 NZD
Retailer 3$14,467 NZD
Retailer 4$14,467 NZD
Retailer 6$14,559 NZD
Retailer 2$14,936 NZD
Yorxs$15,537 NZD
Retailer 9$20,113 NZD

15 data points across 13 retailers

10 retailers$11,745 NZD to $15,537 NZD

A
Cheapest Retailer
-
$11,745 NZD
A
Retailer 2
-
$12,380 NZD
View
A
Retailer 3
-
$12,380 NZD
View
Retailer 4
-
$13,333 NZD
View
Price last confirmed 29 days ago
A
Retailer 5
-
$13,482 NZD
View
B+
Retailer 6
-
$13,807 NZD
View
B+
Retailer 7
-
$14,467 NZD
View
B+
Retailer 8
-
$14,559 NZD
View
B+
Retailer 9
-
$14,936 NZD
View
Most Expensive
B+
Yorxs
5290575B9 · Nov 6
$15,537 NZD
€8,203 EUR
View
9 more retailers have this diamond
Prices start from $11,745 NZDSave up to $3,792 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
$11,745 NZD