Oval|Natural|GIA

1.01ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1555867759

Certificate GIA 1555867759

Diamond specifications and retailer prices

From $2,432 USD
SGD 3,286 SGD
As of October 31, 2026
Save $2,109 USD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,541 USD at Helzberg Diamonds · As of October 30, 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 30, 2026, with prices from $2,432 to $4,541, a $2,109 spread on the same certified stone. Helzberg Diamonds lists it at $4,541. 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
Color
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: $4,541 USD|Low: $2,432 USD|High: $4,822 USD|Avg: $3,286 USD|-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
October 31, 2026
Retailer 10$2,432 USD
Retailer 5$2,538 USD
Retailer 8$2,596 USD
Retailer 9$2,621 USD
Retailer 11$2,641 USD
Retailer 7$2,851 USD
Retailer 4$2,876 USD
Retailer 12$3,093 USD
Retailer 14$3,140 USD
Retailer 3$3,203 USD
Retailer 2$3,389 USD
Retailer 6$4,025 USD
Retailer 13$4,344 USD
Helzberg Diamonds$4,541 USD

38 data points across 14 retailers

15 retailers$2,432 USD to $4,541 USD

A
Cheapest Retailer
-
$2,432 USD
SGD 3,286 SGD
A
Retailer 2
-
$2,538 USD
View
A
Retailer 3
-
$2,596 USD
View
A
Retailer 4
-
$2,621 USD
View
A
Retailer 5
-
$2,641 USD
View
A
Retailer 6
-
$2,851 USD
£2,245 GBP
View
A
Retailer 7
-
$2,876 USD
SGD 3,886 SGD
View
B+
Retailer 8
-
$3,093 USD
View
B+
Retailer 9
-
$3,136 USD
View
B+
Retailer 10
-
$3,140 USD
View
B+
Retailer 11
-
$3,203 USD
View
B+
Retailer 12
-
$3,389 USD
€3,228 EUR
View
B+
Retailer 13
-
$4,025 USD
View
B+
Retailer 14
-
$4,344 USD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLLOMNNLP · Oct 30
$4,541 USD
View
14 more retailers have this diamond
Prices start from $2,432 USDSave up to $2,109 USD

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
$2,432 USD