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Round|Natural|GIA

1.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2245021465

Certificate GIA 2245021465

Diamond specifications and retailer prices

From $11,875 NZD
HK$52,200 HKD
As of November 1, 2026
Save $10,401 NZD (47%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $22,276 NZD at MOH London · As of November 2, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2245021465. Listed at 19 retailers as of November 1, 2026, with prices from $11,875 to $22,276, a $10,401 spread on the same certified stone. MOH London lists it at $22,276. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2245021465
Dimensions7.30 × 7.33 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.30 mm7.33 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245021465
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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 1
Current: $22,276 NZD|Low: $11,875 NZD|High: $23,183 NZD|Avg: $15,687 NZD|-2.6%
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
November 2, 2026
Retailer 5$11,875 NZD
Retailer 15$11,935 NZD
Retailer 4$12,102 NZD
Retailer 16$12,276 NZD
Retailer 18$12,464 NZD
Retailer 11$13,220 NZD
Retailer 3$13,260 NZD
Retailer 6$13,314 NZD
Retailer 13$14,680 NZD
Retailer 7$14,944 NZD
Retailer 10$15,325 NZD
Retailer 2$15,907 NZD
Retailer 8$15,907 NZD
Retailer 12$16,440 NZD
Retailer 14$16,512 NZD
Retailer 9$16,752 NZD
Retailer 17$19,637 NZD
MOH London$22,276 NZD

28 data points across 18 retailers

19 retailers$11,875 NZD to $22,276 NZD

A
Cheapest Retailer
-
$11,875 NZD
HK$52,200 HKD
A
Retailer 2
-
$11,935 NZD
$6,715 USD
View
A
Retailer 3
-
$12,102 NZD
$6,809 USD
View
A
Retailer 4
-
$12,276 NZD
$6,907 USD
View
A
Retailer 5
-
$12,464 NZD
A$10,789 AUD
View
B+
Retailer 6
-
$13,220 NZD
CA$10,331 CAD
View
B+
Retailer 7
-
$13,260 NZD
$7,461 USD
View
Final sale: no returns
B+
Retailer 8
-
$13,314 NZD
$7,491 USD
View
B+
Retailer 9
-
$14,680 NZD
£6,504 GBP
View
B+
Retailer 10
-
$14,944 NZD
$8,408 USD
View
Retailer 11
-
$15,325 NZD
A$13,266 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$15,907 NZD
$8,950 USD
View
B+
Retailer 13
-
$15,907 NZD
$8,950 USD
View
B+
Retailer 14
-
$16,440 NZD
$9,250 USD
View
B+
Retailer 15
-
$16,512 NZD
€8,848 EUR
View
B+
Retailer 16
-
$16,752 NZD
$9,426 USD
View
Price last confirmed 7 days ago
Retailer 17
-
$17,910 NZD
$10,077 USD
View
Price last confirmed 19 days ago
B
Retailer 18
-
$19,637 NZD
ZAR 178,494 ZAR
View
Most Expensive
B
MOH London
C7551D8A6 · Nov 2
$22,276 NZD
£9,869 GBP
View
18 more retailers have this diamond
Prices start from $11,875 NZDSave up to $10,401 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
$11,875 NZD