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Round|Natural|GIA

1.25ct J IF Round Natural Diamond

EX • J/IF • GIA 6131428768

Certificate GIA 6131428768

Diamond specifications and retailer prices

From $8,172 NZD
As of November 4, 2026
Save $8,149 NZD (50%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $16,321 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6131428768. Listed at 7 retailers as of November 4, 2026, with prices from $8,172 to $16,321, a $8,149 spread on the same certified stone. MOH London lists it at $16,321. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6131428768
Dimensions6.92 × 6.90 × 4.26 mm
L/W Ratio1.00
Star length55%
Lower girdle80%
Top View
6.92 mm6.90 mm1.25 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6131428768
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.6%

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: Nov 4
Current: $16,321 NZD|Low: $8,172 NZD|High: $16,564 NZD|Avg: $11,513 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4$8,172 NZD
Retailer 2$9,860 NZD
Retailer 5$10,329 NZD
Retailer 3$11,554 NZD
MOH London$16,321 NZD

41 data points across 5 retailers

7 retailers$8,172 NZD to $16,321 NZD

A
Cheapest Retailer
-
$8,172 NZD
B+
Retailer 2
-
$9,860 NZD
View
Retailer 3
-
$10,329 NZD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
$10,542 NZD
View
Retailer 5
-
$11,336 NZD
View
Price last confirmed 14 days ago
B+
Retailer 6
-
$11,554 NZD
View
Most Expensive
B
MOH London
1ABB134E8 · Nov 4
$16,321 NZD
£7,124 GBP
View
6 more retailers have this diamond
Prices start from $8,172 NZDSave up to $8,149 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
1.25ct Round
$8,172 NZD