Oval|Natural|GIA

2.51ct D SI2 Oval Natural Diamond

VG • D/SI2 • GIA 1242101378

Certificate GIA 1242101378

Diamond specifications and retailer prices

From $21,632 USD
SGD 29,233 SGD
As of November 1, 2026
Save $13,232 USD (38%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $34,864 USD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 2.51ct natural oval diamond

This 2.51ct natural oval sits in the two to three carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1242101378. Listed at 12 retailers as of November 1, 2026, with prices from $21,632 to $34,864, a $13,232 spread on the same certified stone. Helzberg Diamonds lists it at $34,864. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
D
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242101378
Dimensions10.74 × 7.68 × 4.74 mm
L/W Ratio1.40
Top View
10.74 mm7.68 mm2.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242101378
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NDepth 61.7%

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: Nov 1
Current: $34,864 USD|Low: $21,632 USD|High: $34,864 USD|Avg: $27,066 USD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$21,632 USD
Retailer 2$23,005 USD
Retailer 6$23,610 USD
Retailer 3$24,302 USD
Retailer 10$24,685 USD
Retailer 8$26,896 USD
Retailer 5$27,634 USD
Retailer 11$27,781 USD
Retailer 9$29,007 USD
Retailer 4$33,216 USD
Helzberg Diamonds$34,864 USD

10 data points across 11 retailers

12 retailers$21,632 USD to $34,864 USD

A
Cheapest Retailer
-
$21,632 USD
SGD 29,233 SGD
A
Retailer 2
-
$23,005 USD
£18,114 GBP
View
A
Retailer 3
-
$23,610 USD
View
A
Retailer 4
-
$24,302 USD
View
A
Retailer 5
-
$24,394 USD
SGD 32,965 SGD
View
B+
Retailer 6
-
$24,685 USD
View
B+
Retailer 7
-
$26,896 USD
View
B+
Retailer 8
-
$27,634 USD
€26,318 EUR
View
B+
Retailer 9
-
$27,781 USD
View
B+
Retailer 10
-
$29,007 USD
View
B
Retailer 11
-
$33,216 USD
View
Most Expensive
B
Helzberg Diamonds
XZRHIKIHGHJNO · Nov 1
$34,864 USD
View
11 more retailers have this diamond
Prices start from $21,632 USDSave up to $13,232 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
2.51ct Oval
$21,632 USD