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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 $3,109 SGD
As of October 31, 2026
Save $2,697 SGD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,805 SGD 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 $3,109 to $5,805, a $2,697 spread on the same certified stone. Helzberg Diamonds lists it at $5,805. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $5,805 SGD|Low: $3,109 SGD|High: $6,164 SGD|Avg: $4,178 SGD|-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$3,109 SGD
Retailer 5$3,245 SGD
Retailer 8$3,319 SGD
Retailer 9$3,351 SGD
Retailer 11$3,376 SGD
Retailer 2$3,644 SGD
Retailer 4$3,676 SGD
Retailer 12$3,954 SGD
Retailer 14$4,014 SGD
Retailer 3$4,095 SGD
Retailer 7$4,333 SGD
Retailer 6$5,146 SGD
Retailer 13$5,553 SGD
Helzberg Diamonds$5,805 SGD

38 data points across 14 retailers

15 retailers$3,109 SGD to $5,805 SGD

A
Cheapest Retailer
-
$3,109 SGD
A
Retailer 2
-
$3,245 SGD
$2,538 USD
View
A
Retailer 3
-
$3,319 SGD
$2,596 USD
View
A
Retailer 4
-
$3,351 SGD
$2,621 USD
View
A
Retailer 5
-
$3,376 SGD
$2,641 USD
View
A
Retailer 6
-
$3,644 SGD
£2,245 GBP
View
A
Retailer 7
-
$3,676 SGD
View
B+
Retailer 8
-
$3,954 SGD
$3,093 USD
View
B+
Retailer 9
-
$4,009 SGD
$3,136 USD
View
B+
Retailer 10
-
$4,014 SGD
$3,140 USD
View
B+
Retailer 11
-
$4,095 SGD
$3,203 USD
View
B+
Retailer 12
-
$4,333 SGD
€3,228 EUR
View
B+
Retailer 13
-
$5,146 SGD
$4,025 USD
View
B+
Retailer 14
-
$5,553 SGD
$4,344 USD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLLOMNNLP · Nov 1
$5,805 SGD
$4,541 USD
View
14 more retailers have this diamond
Prices start from $3,109 SGDSave up to $2,697 SGD

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
$3,109 SGD