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1.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6565171682

Certificate GIA 6565171682

Diamond specifications and retailer prices

From $6,481 NZD
SGD 4,936 SGD
As of October 31, 2026
Save $6,955 NZD (52%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $13,435 NZD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565171682. Listed at 7 retailers as of October 26, 2026, with prices from $6,481 to $13,435, a $6,955 spread on the same certified stone. Wholesale Diamonds Direct lists it at $13,435. 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
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565171682
Dimensions7.30 × 4.58 × 4.58 mm
L/W Ratio1.59
Culet sizeNone
Top View
7.30 mm4.58 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565171682
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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: Oct 31
Current: $9,475 NZD|Low: $6,481 NZD|High: $15,791 NZD|Avg: $9,995 NZD|-12.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
November 1, 2026
Retailer 4$6,481 NZD
Retailer 3$7,794 NZD
Retailer 6$8,035 NZD
Retailer 5$9,288 NZD
Retailer 1$9,475 NZD
Retailer 2$9,622 NZD
Wholesale Diamonds Direct$13,435 NZD

36 data points across 7 retailers

7 retailers$6,481 NZD to $13,435 NZD

A
Cheapest Retailer
-
$6,481 NZD
SGD 4,936 SGD
A
Retailer 2
-
$7,794 NZD
$4,393 USD
View
A
Retailer 3
-
$8,035 NZD
SGD 6,120 SGD
View
A
Retailer 4
-
$9,288 NZD
$5,235 USD
View
A
Retailer 5
-
$9,475 NZD
€5,086 EUR
View
A
Retailer 6
-
$9,622 NZD
£4,270 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
378293572 · Oct 26
$13,435 NZD
$7,572 USD
View
6 more retailers have this diamond
Prices start from $6,481 NZDSave up to $6,955 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
$6,481 NZD