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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

ID • H/SI1 • GIA 6532284793

Certificate GIA 6532284793

Diamond specifications and retailer prices

From $11,301 NZD
$6,369 USD
As of October 28, 2026
Save $12,624 NZD (53%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $23,925 NZD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532284793. Listed at 24 retailers as of October 27, 2026, with prices from $11,301 to $23,925, a $12,624 spread on the same certified stone. NZ Jewellers lists it at $23,925. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.97°
OriginNatural
Grading LabGIA
CertificateGIA 6532284793
Dimensions9.06 × 6.43 × 3.94 mm
L/W Ratio1.41
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
9.06 mm6.43 mm1.51 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6532284793
Side View
Table 63.0%Crown 35.97°Girdle: STK-VTKPavilionCulet: NoneDepth 61.3%

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: Oct 28
Current: $23,925 NZD|Low: $10,965 NZD|High: $23,925 NZD|Avg: $14,561 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
October 29, 2026
Retailer 7$11,301 NZD
Retailer 10$11,389 NZD
Retailer 6$11,962 NZD
Retailer 20$11,962 NZD
Retailer 8$11,985 NZD
Retailer 9$12,062 NZD
Retailer 12$12,738 NZD
Retailer 11$12,887 NZD
Retailer 18$12,959 NZD
Retailer 19$13,158 NZD
Retailer 2$13,492 NZD
Retailer 13$13,557 NZD
Retailer 4$13,706 NZD
Retailer 5$13,715 NZD
Retailer 3$14,954 NZD
Retailer 15$15,608 NZD
Retailer 17$17,417 NZD
Retailer 14$20,041 NZD
Retailer 16$20,123 NZD
NZ Jewellers$23,925 NZD

23 data points across 20 retailers

24 retailers$11,301 NZD to $23,925 NZD

B+
Cheapest Retailer
-
$11,301 NZD
$6,369 USD
B+
Retailer 2
-
$11,389 NZD
$6,419 USD
View
B+
Retailer 3
-
$11,962 NZD
$6,742 USD
View
Final sale: no returns
B+
Retailer 4
-
$11,962 NZD
$6,742 USD
View
B+
Retailer 5
-
$11,985 NZD
$6,755 USD
View
B+
Retailer 6
-
$12,062 NZD
$6,798 USD
View
Retailer 7
-
$12,738 NZD
$7,179 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$12,887 NZD
$7,263 USD
View
B+
Retailer 9
-
$12,959 NZD
$7,304 USD
View
B
Retailer 10
-
$13,158 NZD
$7,416 USD
View
B+
Retailer 11
-
$13,492 NZD
£5,987 GBP
View
B+
Retailer 12
-
$13,557 NZD
£6,016 GBP
View
Retailer 13
-
$13,706 NZD
A$11,884 AUD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$13,715 NZD
$7,730 USD
View
B+
Retailer 15
-
$13,786 NZD
$7,770 USD
View
B+
Retailer 16
-
$13,786 NZD
$7,770 USD
View
B
Retailer 17
-
$14,248 NZD
$8,030 USD
View
B
Retailer 18
-
$14,472 NZD
$8,157 USD
View
B
Retailer 19
-
$14,954 NZD
$8,428 USD
View
B
Retailer 20
-
$15,608 NZD
€8,378 EUR
View
B
Retailer 21
-
$17,417 NZD
ZAR 158,584 ZAR
View
B
Retailer 22
-
$20,041 NZD
£8,894 GBP
View
B
Retailer 23
-
$20,123 NZD
£8,930 GBP
View
Most Expensive
B
NZ Jewellers
144cd5a2-b832-42d8-b70a-354daa8ffc92 · Oct 27
$23,925 NZD
$13,484 USD
View
23 more retailers have this diamond
Prices start from $11,301 NZDSave up to $12,624 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 Oval
$11,301 NZD