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Round|Natural|GIA

1.51ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7553994445

Certificate GIA 7553994445

Diamond specifications and retailer prices

From $8,228 NZD
As of November 6, 2026
Save $3,462 NZD (30%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,689 NZD at Jared · As of November 6, 2026
View at Jared

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7553994445. Listed at 9 retailers as of November 6, 2026, with prices from $8,228 to $11,689, a $3,462 spread on the same certified stone. Jared lists it at $11,689. 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

1.51
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7553994445
Dimensions7.26 × 7.30 × 4.60 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Crystal, Needle
Top View
7.26 mm7.30 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7553994445
Side View
Table 57.0%Crown 35°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 63.2%

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 6
Current: $11,689 NZD|Low: $8,228 NZD|High: $11,689 NZD|Avg: $10,103 NZD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$8,228 NZD
Retailer 5$9,461 NZD
Retailer 7$9,896 NZD
Retailer 3$10,194 NZD
Retailer 9$10,445 NZD
Retailer 8$10,594 NZD
Retailer 4$11,310 NZD
Retailer 6$11,310 NZD
Jared$11,689 NZD

45 data points across 9 retailers

9 retailers$8,228 NZD to $11,689 NZD

A
Cheapest Retailer
-
$8,228 NZD
A
Retailer 2
-
$9,461 NZD
View
B+
Retailer 3
-
$9,896 NZD
View
B+
Retailer 4
-
$10,194 NZD
View
B+
Retailer 5
-
$10,445 NZD
View
B+
Retailer 6
-
$10,594 NZD
View
B+
Retailer 7
-
$11,310 NZD
View
B+
Retailer 8
-
$11,310 NZD
View
Most Expensive
B+
Jared
160181293 · Nov 6
$11,689 NZD
$6,480 USD
View
8 more retailers have this diamond
Prices start from $8,228 NZDSave up to $3,462 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
1.51ct Round
$8,228 NZD