CaratHunter
Plans
Marquise|Natural|GIA

0.78ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 1236939128

Certificate GIA 1236939128

Diamond specifications and retailer prices

From $1,733 NZD
$975 USD
As of November 1, 2026
Save $2,068 NZD (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,801 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 0.78ct natural marquise diamond

This 0.78ct natural marquise sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1236939128. Listed at 8 retailers as of November 1, 2026, with prices from $1,733 to $3,801, a $2,068 spread on the same certified stone. MOH London lists it at $3,801. 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

0.78
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1236939128
Dimensions8.87 × 4.91 × 3.24 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizeNone
Top View
8.87 mm4.91 mm0.78 ctJ / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 1236939128
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.0%

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: $3,801 NZD|Low: $1,733 NZD|High: $3,846 NZD|Avg: $2,504 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 4$1,733 NZD
Retailer 8$2,142 NZD
Retailer 6$2,293 NZD
Retailer 7$2,293 NZD
Retailer 5$2,364 NZD
Retailer 2$2,389 NZD
Retailer 3$2,902 NZD
MOH London$3,801 NZD

44 data points across 8 retailers

8 retailers$1,733 NZD to $3,801 NZD

A
Cheapest Retailer
-
$1,733 NZD
$975 USD
B+
Retailer 2
-
$2,142 NZD
$1,205 USD
View
B+
Retailer 3
-
$2,293 NZD
$1,290 USD
View
B+
Retailer 4
-
$2,293 NZD
$1,290 USD
View
B+
Retailer 5
-
$2,364 NZD
$1,330 USD
View
B+
Retailer 6
-
$2,389 NZD
£1,058 GBP
View
B
Retailer 7
-
$2,902 NZD
€1,555 EUR
View
Most Expensive
B
MOH London
7A9F724BF · Nov 2
$3,801 NZD
£1,684 GBP
View
7 more retailers have this diamond
Prices start from $1,733 NZDSave up to $2,068 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
0.78ct Marquise
$1,733 NZD