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Round|Natural|GIA

1.51ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7541811764

Certificate GIA 7541811764

Diamond specifications and retailer prices

From $10,815 NZD
₹580,499 INR
As of November 1, 2026
Save $12,805 NZD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $23,619 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7541811764. Listed at 14 retailers as of October 30, 2026, with prices from $10,815 to $23,619, a $12,805 spread on the same certified stone. NZ Jewellers lists it at $23,619. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7541811764
Dimensions7.28 × 7.32 × 4.61 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Top View
7.28 mm7.32 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7541811764
Side View
Table 56.0%Crown 36°Girdle: ThinPavilion 41.2°Culet: NoneDepth 63.1%

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 1
Current: $23,619 NZD|Low: $10,790 NZD|High: $24,201 NZD|Avg: $14,600 NZD|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 7$10,815 NZD
Retailer 4$11,414 NZD
Retailer 5$12,028 NZD
Retailer 13$12,207 NZD
Retailer 12$13,014 NZD
Retailer 2$13,226 NZD
Retailer 9$13,588 NZD
Retailer 11$13,618 NZD
Retailer 3$14,418 NZD
Retailer 6$14,722 NZD
Retailer 10$17,349 NZD
Retailer 8$19,681 NZD
NZ Jewellers$23,619 NZD

26 data points across 13 retailers

14 retailers$10,815 NZD to $23,619 NZD

A
Cheapest Retailer
-
$10,815 NZD
₹580,499 INR
A
Retailer 2
-
$11,113 NZD
A$9,636 AUD
View
A
Retailer 3
-
$11,414 NZD
$6,433 USD
View
Final sale: no returns
A
Retailer 4
-
$12,028 NZD
$6,779 USD
View
A
Retailer 5
-
$12,207 NZD
$6,880 USD
View
A
Retailer 6
-
$13,014 NZD
$7,335 USD
View
A
Retailer 7
-
$13,226 NZD
£5,869 GBP
View
A
Retailer 8
-
$13,588 NZD
£6,030 GBP
View
Retailer 9
-
$13,618 NZD
A$11,808 AUD
View
Price last confirmed 11 days ago
A
Retailer 10
-
$14,418 NZD
$8,126 USD
View
B+
Retailer 11
-
$14,722 NZD
€7,902 EUR
View
B+
Retailer 12
-
$17,349 NZD
ZAR 157,963 ZAR
View
B+
Retailer 13
-
$19,681 NZD
£8,734 GBP
View
Most Expensive
B
NZ Jewellers
0b4a8bda-cb19-441c-9a07-5033c22d5226 · Oct 30
$23,619 NZD
$13,312 USD
View
13 more retailers have this diamond
Prices start from $10,815 NZDSave up to $12,805 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 Round
$10,815 NZD