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Round|Natural|GIA

2.51ct G SI2 Round Natural Diamond

VG • G/SI2 • GIA 7538261593

Certificate GIA 7538261593

Diamond specifications and retailer prices

From $18,516 NZD
SGD 14,102 SGD
As of October 31, 2026
Save $15,803 NZD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $34,319 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 GIA 7538261593. Listed at 13 retailers as of October 30, 2026, with prices from $18,516 to $34,319, a $15,803 spread on the same certified stone. NZ Jewellers lists it at $34,319. 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
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 7538261593
Dimensions8.50 × 8.42 × 5.40 mm
L/W Ratio1.01
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Needle
Top View
8.50 mm8.42 mm2.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7538261593
Side View
Table 58.0%Crown 38°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 63.9%

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: $34,319 NZD|Low: $18,516 NZD|High: $34,319 NZD|Avg: $25,201 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$18,516 NZD
Retailer 6$20,408 NZD
Retailer 5$22,048 NZD
Retailer 9$22,729 NZD
Retailer 4$23,692 NZD
Retailer 8$25,569 NZD
Retailer 2$25,831 NZD
Retailer 3$32,158 NZD
NZ Jewellers$34,319 NZD

36 data points across 9 retailers

13 retailers$18,516 NZD to $34,319 NZD

Retailer 1
-
$17,851 NZD
HK$78,600 HKD
Price last confirmed 58 days ago
A
Retailer 2
-
$18,516 NZD
SGD 14,102 SGD
View
A
Retailer 3
-
$20,408 NZD
$11,502 USD
View
A
Retailer 4
-
$21,086 NZD
$11,884 USD
View
A
Retailer 5
-
$21,119 NZD
$11,903 USD
View
A
Retailer 6
-
$22,048 NZD
£9,784 GBP
View
A
Retailer 7
-
$22,729 NZD
$12,810 USD
View
A
Retailer 8
-
$23,692 NZD
£10,514 GBP
View
Retailer 9
-
$24,244 NZD
$13,664 USD
View
Price last confirmed 33 days ago
A
Retailer 10
-
$25,569 NZD
$14,411 USD
View
A
Retailer 11
-
$25,831 NZD
€13,865 EUR
View
A
Retailer 12
-
$32,158 NZD
£14,271 GBP
View
Most Expensive
B+
NZ Jewellers
db261ead-62b1-416c-9332-9de4cecf5d26 · Oct 30
$34,319 NZD
$19,342 USD
View
12 more retailers have this diamond
Prices start from $18,516 NZDSave up to $15,803 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
$18,516 NZD