CaratHunter
Plans
Round|Natural|GIA

2.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5231668055

Certificate GIA 5231668055

Diamond specifications and retailer prices

From $51,591 NZD
$29,077 USD
As of October 30, 2026
Save $38,838 NZD (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $90,430 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5231668055. Listed at 15 retailers as of October 29, 2026, with prices from $51,591 to $90,430, a $38,838 spread on the same certified stone. MOH London lists it at $90,430. 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

2.50
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5231668055
Dimensions8.54 × 8.65 × 5.39 mm
L/W Ratio1.01
Top View
8.54 mm8.65 mm2.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5231668055
Side View
Table 58.0%Crown 36°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $90,430 NZD|Low: $51,591 NZD|High: $91,031 NZD|Avg: $63,843 NZD|-0.7%
MOH London
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
October 30, 2026
Retailer 5$51,591 NZD
Retailer 6$52,436 NZD
Retailer 4$55,944 NZD
Retailer 14$57,507 NZD
Retailer 8$57,555 NZD
Retailer 15$57,594 NZD
Retailer 10$58,140 NZD
Retailer 7$61,581 NZD
Retailer 3$62,393 NZD
Retailer 11$67,125 NZD
Retailer 2$68,302 NZD
Retailer 13$68,626 NZD
Retailer 12$72,097 NZD
Retailer 9$79,216 NZD
MOH London$90,430 NZD

31 data points across 15 retailers

15 retailers$51,591 NZD to $90,430 NZD

B+
Cheapest Retailer
-
$51,591 NZD
$29,077 USD
B+
Retailer 2
-
$52,436 NZD
$29,553 USD
View
B+
Retailer 3
-
$55,944 NZD
$31,530 USD
View
Retailer 4
-
$57,507 NZD
A$49,863 AUD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
$57,555 NZD
£25,542 GBP
View
B+
Retailer 6
-
$57,594 NZD
$32,460 USD
View
B+
Retailer 7
-
$58,140 NZD
CA$45,511 CAD
View
B+
Retailer 8
-
$61,581 NZD
$34,707 USD
View
B
Retailer 9
-
$62,393 NZD
$35,165 USD
View
B+
Retailer 10
-
$67,125 NZD
$37,832 USD
View
B+
Retailer 11
-
$68,302 NZD
€36,662 EUR
View
B+
Retailer 12
-
$68,626 NZD
$38,678 USD
View
B
Retailer 13
-
$72,097 NZD
$40,634 USD
View
B
Retailer 14
-
$79,216 NZD
ZAR 721,270 ZAR
View
Most Expensive
B
MOH London
03B2ED617 · Oct 29
$90,430 NZD
£40,131 GBP
View
14 more retailers have this diamond
Prices start from $51,591 NZDSave up to $38,838 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.

B+
2.50ct Round
$51,591 NZD