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Round|Natural|IGI

2.51ct G SI2 Round Natural Diamond

VG • G/SI2 • IGI 835613860

Shape and cutting style on the report: Round brilliant

Certificate IGI 835613860

Diamond specifications and retailer prices

From $14,957 NZD
$8,430 USD
As of October 30, 2026
Save $13,989 NZD (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $28,946 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 835613860. Listed at 15 retailers as of October 30, 2026, with prices from $14,957 to $28,946, a $13,989 spread on the same certified stone. NZ Jewellers lists it at $28,946. 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
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 835613860
Dimensions8.47 × 8.52 × 5.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
8.47 mm8.52 mm2.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 835613860
Side View
Table 61.0%Crown 37.1°Girdle: STK-THKPavilion 41.7°Culet: NoneDepth 64.3%

Caratlytics Score

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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 30
Current: $28,946 NZD|Low: $12,581 NZD|High: $28,946 NZD|Avg: $17,987 NZD
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
November 1, 2026
Retailer 7$12,610 NZD
Retailer 4$14,957 NZD
Retailer 5$15,344 NZD
Retailer 12$15,976 NZD
Retailer 9$16,652 NZD
Retailer 6$16,909 NZD
Retailer 3$17,307 NZD
Retailer 11$17,309 NZD
Retailer 13$17,573 NZD
Retailer 10$17,696 NZD
Retailer 2$17,898 NZD
Retailer 14$19,968 NZD
Retailer 8$24,118 NZD
NZ Jewellers$28,946 NZD

16 data points across 14 retailers

15 retailers$14,957 NZD to $28,946 NZD

Retailer 1
-
$12,610 NZD
₹676,885 INR
Price under review
A
Retailer 2
-
$14,957 NZD
$8,430 USD
View
A
Retailer 3
-
$15,344 NZD
$8,648 USD
View
A
Retailer 4
-
$15,976 NZD
$9,004 USD
View
A
Retailer 5
-
$16,652 NZD
£7,390 GBP
View
A
Retailer 6
-
$16,909 NZD
$9,530 USD
View
A
Retailer 7
-
$17,193 NZD
$9,690 USD
View
A
Retailer 8
-
$17,307 NZD
$9,754 USD
View
A
Retailer 9
-
$17,309 NZD
$9,756 USD
View
A
Retailer 10
-
$17,573 NZD
$9,904 USD
View
A
Retailer 11
-
$17,696 NZD
$9,973 USD
View
A
Retailer 12
-
$17,898 NZD
€9,607 EUR
View
B+
Retailer 13
-
$19,968 NZD
$11,254 USD
View
A
Retailer 14
-
$24,118 NZD
£10,703 GBP
View
Most Expensive
B+
NZ Jewellers
fc532552-2595-462d-85e1-9a4f50fe25a9 · Oct 30
$28,946 NZD
$16,314 USD
View
14 more retailers have this diamond
Prices start from $14,957 NZDSave up to $13,989 NZD

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 Round
$14,957 NZD