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Oval|Natural|GIA

2.51ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 5556763815

Certificate GIA 5556763815

Diamond specifications and retailer prices

From $37,638 AUD
SGD 35,728 SGD
As of October 30, 2026
Save $32,645 AUD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $70,283 AUD at With Clarity · As of October 30, 2026
View at With Clarity

About this 2.51ct natural oval diamond

This 2.51ct natural oval sits in the two to three carat band, graded E 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 5556763815. Listed at 14 retailers as of October 30, 2026, with prices from $37,638 to $70,283, a $32,645 spread on the same certified stone. With Clarity lists it at $70,283. 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

2.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.81°
Pavilion angle39.83°
OriginNatural
Grading LabGIA
CertificateGIA 5556763815
Dimensions11.15 × 7.45 × 4.55 mm
L/W Ratio1.50
Culet sizeNone
Top View
11.15 mm7.45 mm2.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556763815
Side View
Table 60.0%Crown 39.81°Girdle: STK-THKPavilion 39.83°Culet: NoneDepth 61.1%

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 30
Current: $48,093 AUD|Low: $37,638 AUD|High: $68,878 AUD|Avg: $46,522 AUD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
October 31, 2026
Retailer 12$37,638 AUD
Retailer 6$40,348 AUD
Retailer 2$41,086 AUD
Retailer 3$41,089 AUD
Retailer 11$42,242 AUD
Retailer 4$42,284 AUD
Retailer 7$42,451 AUD
Retailer 10$45,918 AUD
Retailer 1$48,093 AUD
Retailer 9$48,297 AUD
Retailer 8$49,356 AUD
Retailer 5$57,805 AUD
With Clarity$68,878 AUD

44 data points across 13 retailers

14 retailers$37,638 AUD to $70,283 AUD

A
Cheapest Retailer
-
$37,638 AUD
SGD 35,728 SGD
A
Retailer 2
-
$40,348 AUD
£22,317 GBP
View
B+
Retailer 3
-
$41,086 AUD
$28,861 USD
View
B+
Retailer 4
-
$41,089 AUD
$28,863 USD
View
B+
Retailer 5
-
$42,242 AUD
$29,673 USD
View
B+
Retailer 6
-
$42,284 AUD
$29,702 USD
View
B+
Retailer 7
-
$42,451 AUD
SGD 40,297 SGD
View
B+
Retailer 8
-
$45,918 AUD
$32,255 USD
View
B+
Retailer 9
-
$48,093 AUD
€32,174 EUR
View
B
Retailer 10
-
$48,297 AUD
$33,926 USD
View
B
Retailer 11
-
$49,356 AUD
$34,670 USD
View
B+
Retailer 12
-
$49,869 AUD
$35,030 USD
View
B
Retailer 13
-
$57,805 AUD
$40,605 USD
View
Most Expensive
B
With Clarity
5556763815 · Oct 30
$70,283 AUD
$49,370 USD
View
13 more retailers have this diamond
Prices start from $37,638 AUDSave up to $32,645 AUD

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
$37,638 AUD