Oval|Natural|GIA

2.51ct I VS1 Oval Natural Diamond

ID • I/VS1 • GIA 2231694235

Certificate GIA 2231694235

Diamond specifications and retailer prices

From $15,156 USD
As of October 31, 2026
Save $10,849 USD (42%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $26,088 USD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 2.51ct natural oval diamond

This 2.51ct natural oval sits in the two to three carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231694235. Listed at 24 retailers as of October 31, 2026, with a 72% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.51
Carat
I
Color
VS1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle40.46°
Pavilion angle38.34°
OriginNatural
Grading LabGIA
CertificateGIA 2231694235
Dimensions10.37 × 7.36 × 4.83 mm
L/W Ratio1.41
Girdle conditionVery Thick
Key to symbols
Cloud, Indented Natural
Top View
10.37 mm7.36 mm2.51 ctI / VS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2231694235
Side View
Table 55.0%Crown 40.46°Girdle: THK-VTKPavilion 38.34°Culet: NoneDepth 65.6%

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: $23,588 USD|Low: $14,690 USD|High: $29,106 USD|Avg: $19,091 USD
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 1, 2026
Retailer 12$14,690 USD
Retailer 11$15,156 USD
Retailer 5$15,307 USD
Retailer 20$15,416 USD
Retailer 23$15,623 USD
Retailer 15$15,710 USD
Retailer 19$15,736 USD
Retailer 10$15,956 USD
Retailer 22$16,300 USD
Retailer 3$16,650 USD
Retailer 17$17,320 USD
Retailer 4$17,468 USD
Retailer 6$17,760 USD
Retailer 9$17,889 USD
Retailer 8$17,962 USD
Retailer 7$18,038 USD
Retailer 13$18,101 USD
Retailer 16$18,732 USD
Retailer 14$19,435 USD
Retailer 21$20,203 USD
Retailer 18$23,023 USD
NZ Jewellers$23,588 USD
Retailer 2$26,005 USD

30 data points across 23 retailers

24 retailers$15,156 USD to $26,005 USD

Retailer 1
-
$14,690 USD
Price last confirmed 10 days ago
A
Retailer 2
-
$15,156 USD
View
A
Retailer 3
-
$15,307 USD
View
A
Retailer 4
-
$15,416 USD
₹1,468,230 INR
View
A
Retailer 5
-
$15,623 USD
View
A
Retailer 6
-
$15,710 USD
View
A
Retailer 7
-
$15,736 USD
A$24,209 AUD
View
A
Retailer 8
-
$15,956 USD
View
Final sale: no returns
A
Retailer 9
-
$16,300 USD
View
A
Retailer 10
-
$16,650 USD
View
A
Retailer 11
-
$17,320 USD
£13,638 GBP
View
Retailer 12
-
$17,468 USD
A$26,874 AUD
View
Price last confirmed 8 days ago
A
Retailer 13
-
$17,760 USD
View
A
Retailer 14
-
$17,889 USD
View
A
Retailer 15
-
$17,962 USD
View
A
Retailer 16
-
$18,038 USD
View
A
Retailer 17
-
$18,101 USD
£14,253 GBP
View
A
Retailer 18
-
$18,732 USD
View
A
Retailer 19
-
$19,435 USD
View
A
Retailer 20
-
$20,203 USD
€19,241 EUR
View
A
Retailer 21
-
$23,023 USD
ZAR 371,943 ZAR
View
B+
Retailer 22
-
$23,588 USD
View
B+
Retailer 23
-
$26,005 USD
£20,476 GBP
View
Most Expensive
NZ Jewellers
7e4e9ed6-65ec-422a-8a86-cd619ad804f9 · Sep 30
$26,088 USD
View
Price last confirmed 31 days ago
23 more retailers have this diamond
Prices start from $15,156 USDSave up to $10,849 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
$15,156 USD