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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 7566185764

Certificate GIA 7566185764

Diamond specifications and retailer prices

From $7,018 NZD
SGD 5,345 SGD
As of October 31, 2026
Save $7,530 NZD (52%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,115 NZD at Wholesale Diamonds Direct · As of October 7, 2026
View at Wholesale Diamonds Direct

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 7566185764. Listed at 12 retailers as of October 26, 2026, with a 107% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.97°
Pavilion angle39.86°
OriginNatural
Grading LabGIA
CertificateGIA 7566185764
Dimensions8.96 × 6.41 × 4.01 mm
L/W Ratio1.40
Culet sizeNone
Top View
8.96 mm6.41 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566185764
Side View
Table 60.0%Crown 41.97°Girdle: MED-THKPavilion 39.86°Culet: NDepth 62.5%

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 31
Current: $10,254 NZD|Low: $6,375 NZD|High: $15,714 NZD|Avg: $9,920 NZD|-5.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
October 31, 2026
Retailer 3$6,375 NZD
Retailer 8$7,018 NZD
Retailer 5$8,251 NZD
Retailer 6$8,440 NZD
Retailer 4$8,490 NZD
Retailer 2$8,662 NZD
Retailer 11$8,697 NZD
Retailer 9$9,991 NZD
Retailer 10$9,991 NZD
Retailer 1$10,254 NZD
Retailer 7$13,437 NZD
Wholesale Diamonds Direct$14,548 NZD

24 data points across 12 retailers

12 retailers$7,018 NZD to $14,548 NZD

A
Cheapest Retailer
-
$7,018 NZD
SGD 5,345 SGD
A
Retailer 2
-
$8,251 NZD
$4,650 USD
View
A
Retailer 3
-
$8,440 NZD
$4,757 USD
View
A
Retailer 4
-
$8,490 NZD
$4,785 USD
View
A
Retailer 5
-
$8,662 NZD
$4,882 USD
View
A
Retailer 6
-
$8,697 NZD
SGD 6,624 SGD
View
B+
Retailer 7
-
$9,991 NZD
$5,631 USD
View
B+
Retailer 8
-
$9,991 NZD
$5,631 USD
View
B+
Retailer 9
-
$10,254 NZD
€5,504 EUR
View
B+
Retailer 10
-
$13,437 NZD
$7,573 USD
View
B
Retailer 11
-
$14,548 NZD
$8,199 USD
View
Most Expensive
Wholesale Diamonds Direct
323485704 · Oct 7
$15,115 NZD
$8,519 USD
View
Price last confirmed 25 days ago
11 more retailers have this diamond
Prices start from $7,018 NZDSave up to $7,530 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 Oval
$7,018 NZD