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Round|Natural|GIA

1.51ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 5533597927

Certificate GIA 5533597927

Diamond specifications and retailer prices

From $9,393 NZD
$5,285 USD
As of October 30, 2026
Save $12,519 NZD (57%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $21,912 NZD at NZ Jewellers · As of November 2, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 5533597927. Listed at 26 retailers as of October 30, 2026, with prices from $9,393 to $21,912, a $12,519 spread on the same certified stone. NZ Jewellers lists it at $21,912. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 5533597927
Dimensions7.18 × 7.16 × 4.62 mm
L/W Ratio1.00
Top View
7.18 mm7.16 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5533597927
Side View
Table 56.0%Crown 38.5°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 64.5%

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: Oct 30
Current: $21,912 NZD|Low: $9,393 NZD|High: $21,912 NZD|Avg: $12,821 NZD
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 2, 2026
Retailer 16$9,393 NZD
Retailer 22$9,805 NZD
Retailer 24$9,935 NZD
Retailer 20$9,980 NZD
Retailer 23$10,351 NZD
Retailer 14$10,367 NZD
Retailer 12$10,957 NZD
Retailer 15$10,957 NZD
Retailer 10$11,010 NZD
Retailer 5$11,799 NZD
Retailer 9$11,869 NZD
Retailer 11$12,052 NZD
Retailer 13$12,270 NZD
Retailer 7$12,619 NZD
Retailer 8$12,619 NZD
Retailer 17$12,831 NZD
Retailer 3$13,045 NZD
Retailer 18$13,479 NZD
Retailer 6$13,696 NZD
Retailer 2$13,909 NZD
Retailer 4$15,004 NZD
Retailer 21$16,097 NZD
Retailer 19$18,258 NZD
NZ Jewellers$21,912 NZD

31 data points across 24 retailers

26 retailers$9,393 NZD to $21,912 NZD

A
Cheapest Retailer
-
$9,393 NZD
$5,285 USD
A
Retailer 2
-
$9,805 NZD
HK$43,100 HKD
View
A
Retailer 3
-
$9,935 NZD
$5,590 USD
View
A
Retailer 4
-
$9,980 NZD
$5,615 USD
View
A
Retailer 5
-
$10,351 NZD
$5,824 USD
View
A
Retailer 6
-
$10,367 NZD
$5,833 USD
View
A
Retailer 7
-
$10,747 NZD
A$9,303 AUD
View
B+
Retailer 8
-
$10,957 NZD
$6,165 USD
View
Final sale: no returns
A
Retailer 9
-
$10,957 NZD
$6,165 USD
View
A
Retailer 10
-
$11,010 NZD
$6,195 USD
View
B+
Retailer 11
-
$11,799 NZD
$6,639 USD
View
B+
Retailer 12
-
$11,869 NZD
$6,678 USD
View
B+
Retailer 13
-
$12,052 NZD
$6,781 USD
View
B+
Retailer 14
-
$12,270 NZD
£5,436 GBP
View
B+
Retailer 15
-
$12,619 NZD
$7,100 USD
View
B+
Retailer 16
-
$12,619 NZD
$7,100 USD
View
Retailer 17
-
$12,831 NZD
A$11,107 AUD
View
Price last confirmed 11 days ago
B+
Retailer 18
-
$13,045 NZD
$7,340 USD
View
B+
Retailer 19
-
$13,479 NZD
€7,223 EUR
View
B+
Retailer 20
-
$13,696 NZD
$7,706 USD
View
B+
Retailer 21
-
$13,909 NZD
£6,162 GBP
View
Retailer 22
-
$14,567 NZD
$8,196 USD
View
Price last confirmed 10 days ago
B
Retailer 23
-
$15,004 NZD
$8,442 USD
View
B
Retailer 24
-
$16,097 NZD
ZAR 146,319 ZAR
View
B
Retailer 25
-
$18,258 NZD
£8,089 GBP
View
Most Expensive
B
NZ Jewellers
83ec2ec4-a2a9-4de2-8923-e46b322bb458 · Nov 2
$21,912 NZD
$12,329 USD
View
25 more retailers have this diamond
Prices start from $9,393 NZDSave up to $12,519 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
$9,393 NZD