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Round|Natural|GIA

1.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6561487499

Certificate GIA 6561487499

Diamond specifications and retailer prices

From $6,010 NZD
$3,387 USD
As of October 31, 2026
Save $9,674 NZD (62%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,683 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561487499. Listed at 19 retailers as of October 26, 2026, with prices from $6,010 to $15,683, a $9,674 spread on the same certified stone. MOH London lists it at $15,683. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6561487499
Dimensions7.48 × 7.45 × 4.47 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
7.48 mm7.45 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561487499
Side View
Table 59.0%Crown 32.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 59.9%

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: $15,683 NZD|Low: $6,010 NZD|High: $17,693 NZD|Avg: $10,521 NZD|+1.6%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 4$6,010 NZD
Retailer 18$6,467 NZD
Retailer 6$6,717 NZD
Retailer 17$7,313 NZD
Retailer 16$7,640 NZD
Retailer 10$7,834 NZD
Retailer 19$8,252 NZD
Retailer 14$8,400 NZD
Retailer 13$8,792 NZD
Retailer 7$9,111 NZD
Retailer 15$9,207 NZD
Retailer 3$9,606 NZD
Retailer 9$10,025 NZD
Retailer 5$11,269 NZD
Retailer 11$11,379 NZD
Retailer 12$11,852 NZD
Retailer 2$12,132 NZD
Retailer 8$14,865 NZD
MOH London$15,683 NZD

22 data points across 19 retailers

19 retailers$6,010 NZD to $15,683 NZD

A
Cheapest Retailer
-
$6,010 NZD
$3,387 USD
A
Retailer 2
-
$6,467 NZD
$3,645 USD
View
A
Retailer 3
-
$6,717 NZD
$3,786 USD
View
A
Retailer 4
-
$7,313 NZD
HK$32,200 HKD
View
A
Retailer 5
-
$7,640 NZD
$4,306 USD
View
Retailer 6
-
$7,834 NZD
$4,415 USD
View
Price last confirmed 15 days ago
A
Retailer 7
-
$8,252 NZD
$4,651 USD
View
A
Retailer 8
-
$8,400 NZD
$4,734 USD
View
Final sale: no returns
A
Retailer 9
-
$8,792 NZD
$4,955 USD
View
A
Retailer 10
-
$9,111 NZD
SGD 6,939 SGD
View
A
Retailer 11
-
$9,207 NZD
£4,086 GBP
View
A
Retailer 12
-
$9,606 NZD
$5,414 USD
View
A
Retailer 13
-
$10,025 NZD
$5,650 USD
View
B+
Retailer 14
-
$11,269 NZD
$6,351 USD
View
B+
Retailer 15
-
$11,852 NZD
$6,680 USD
View
B+
Retailer 16
-
$12,132 NZD
£5,384 GBP
View
B
Retailer 17
-
$14,865 NZD
$8,378 USD
View
Retailer 18
-
$15,018 NZD
$8,464 USD
View
Price last confirmed 13 days ago
Most Expensive
B
MOH London
651FA8153 · Oct 26
$15,683 NZD
£6,960 GBP
View
18 more retailers have this diamond
Prices start from $6,010 NZDSave up to $9,674 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
$6,010 NZD