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Oval|Natural|GIA

1.01ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1555867759

Certificate GIA 1555867759

Diamond specifications and retailer prices

From $4,314 NZD
SGD 3,286 SGD
As of October 31, 2026
Save $3,743 NZD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,057 NZD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.01ct natural oval diamond

This 1.01ct natural oval sits in the classic one-carat band, graded D 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 1555867759. Listed at 15 retailers as of October 31, 2026, with prices from $4,314 to $8,057, a $3,743 spread on the same certified stone. Helzberg Diamonds lists it at $8,057. 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

1.01
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.26°
Pavilion angle40.31°
OriginNatural
Grading LabGIA
CertificateGIA 1555867759
Dimensions7.83 × 5.57 × 3.49 mm
L/W Ratio1.41
Culet sizeNone
Top View
7.83 mm5.57 mm1.01 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555867759
Side View
Table 60.0%Crown 40.26°Girdle: MED-THKPavilion 40.31°Culet: NoneDepth 62.6%

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: $8,057 NZD|Low: $4,314 NZD|High: $8,556 NZD|Avg: $5,798 NZD|-5.8%
Helzberg Diamonds
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
November 1, 2026
Retailer 10$4,314 NZD
Retailer 5$4,503 NZD
Retailer 8$4,606 NZD
Retailer 9$4,650 NZD
Retailer 11$4,685 NZD
Retailer 2$5,058 NZD
Retailer 4$5,102 NZD
Retailer 12$5,488 NZD
Retailer 14$5,571 NZD
Retailer 3$5,684 NZD
Retailer 7$6,014 NZD
Retailer 6$7,142 NZD
Retailer 13$7,708 NZD
Helzberg Diamonds$8,057 NZD

38 data points across 14 retailers

15 retailers$4,314 NZD to $8,057 NZD

A
Cheapest Retailer
-
$4,314 NZD
SGD 3,286 SGD
A
Retailer 2
-
$4,503 NZD
$2,538 USD
View
A
Retailer 3
-
$4,606 NZD
$2,596 USD
View
A
Retailer 4
-
$4,650 NZD
$2,621 USD
View
A
Retailer 5
-
$4,685 NZD
$2,641 USD
View
A
Retailer 6
-
$5,058 NZD
£2,245 GBP
View
A
Retailer 7
-
$5,102 NZD
SGD 3,886 SGD
View
B+
Retailer 8
-
$5,488 NZD
$3,093 USD
View
B+
Retailer 9
-
$5,564 NZD
$3,136 USD
View
B+
Retailer 10
-
$5,571 NZD
$3,140 USD
View
B+
Retailer 11
-
$5,684 NZD
$3,203 USD
View
B+
Retailer 12
-
$6,014 NZD
€3,228 EUR
View
B+
Retailer 13
-
$7,142 NZD
$4,025 USD
View
B+
Retailer 14
-
$7,708 NZD
$4,344 USD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLLOMNNLP · Nov 1
$8,057 NZD
$4,541 USD
View
14 more retailers have this diamond
Prices start from $4,314 NZDSave up to $3,743 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
1.01ct Oval
$4,314 NZD